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00:12
1
Q: QuantLib: How to iterate over Cashflows in a Leg

Leonardo CrucianiI am looking for a way to obtain dates and amounts of each cashflow in a leg, without having to pop the cashflows out of the leg, like this for i in range(leg.size()): x=leg.pop() print(x.date(), x.amount())

4
Q: Did x86 CPU vendors like Intel, NEC, AMD, and Cyrix provide their own debugger for DOS with better CPU support and was it free?

CoderMS-DOS's debugger DEBUG.EXE did only support the assembly/disassembly of 8086 opcodes. DR-DOS's debugger SID86.EXE, SID.EXE and Novel's debugger DEBUG.EXE did support 80286 opcodes and more, but no AMD, Cyrix, NEC etc. specialties. So I'm wondering if the CPU manufacturers like AMD, NEC, Cyrix an...

00:25
3
Q: How to make sure a team wins more often than it looses in a tournament with n matches having equal probabilities of wins, losses and draws each?

Satya In a tournament, team X, plays with each of the 6 other teams once. For each match the probabilities of a win, drawn and loss are equal. Find the probability that the team X, finishes with more wins than losses. I don't know if I can call it exactly a binomial probability problem but here's how...

2
Q: Limit of the summation

AhirinofudI have recently been trying out the following limit $$\lim _{a \rightarrow \infty}\left(2 \sqrt{a}-\frac{2 a^{3 / 2}}{3}+\frac{a^{5 / 2}}{5}+\sum_{n=3}^{\infty} \frac{2(-1)^n a^{1 / 2(2 n+1)}}{(2 n+1) n !}\right)$$. While it seems that we cannot evaluate it through some standard methods, Wolfram ...

RPG
RPG
2
Q: Are there any Monsters or NPC's that have spells or spell like abilities that take >1 round to cast, but <10 rounds (1 min)?

MathaddictFor reasons of dramatic tension, I want to have an enemy spellcaster (or monster) that is going to cast a really big, really bad (for the players), spell that the players need to disrupt in some way before it goes off in like 3 rounds or so. Are there any examples of this kind of long casting on ...

TeX
TeX
1
Q: Test for font character, LuaLaTeX

rallgThis question "has been answered before", but not directly to the question. My question pertains only to LuaLaTeX, only to OpenType fonts using UTF-8 encoding, only to text mode (not math), only to the regular main font (which has already been selected). Also, no shell escape. I seek a true/false...

00:47
2
Q: Manhwa about character who maxes out stats by repeating the first level?

IOIThings I remember: It was a manhwa, 100% Korean. Not sure if it was an isekai. The first level consisted of a dark passageway/tunnel, with different colored arrows/darts (not sure which) being shot at the MC. He discovered that every time he interacted with the projectiles (deflecting, catching, ...

RPG
RPG
01:20
4
Q: Should my bugbear with long limbs be able to reach further if he is 21ft tall?

sean spillerI'm currently playing Rime of the Frost Maiden. My Bugbear has been cursed/blessed by something (A weapon I held I think) and he has grown to be 21ft tall. He has the a strength of a Frost Giant (23). My Bugbear was previously 7ft 11 inches. Are there rules to suggest that the reach of my bugbear...

1
Q: Just upgraded to Blender 3.5, now there's a select menu everytime I hit Alt+LMB, how do I get this to go away?

NewArrivalThis is the little menu that pops up every time I press Alt+LMB. I do not like it, it gets in the way and is distracting to my workflow. Anyone know how to get rid of this? I use the Industry compatible keymap since I originally learned Maya. It would be very much appreciated!

DIY
DIY
01:59
1
Q: Use Knockout Non-Metallic Push-In Connector for NM Cable Clamps?

JimCzekI'm getting ready to install NM cable clamps in recessed lighting cans: https://www.homedepot.com/p/Commercial-Electric-6-in-Aluminum-Remodel-IC-Recessed-Can-Light-Housing-6-Pack-CAT7ICRM/202057577 While looking for the various suitable clamps I also found the following: https://www.homedepot.com...

1
Q: 6-regular graph without small 3-regular subgraph

Balchandar ReddyMy name is Balchandar Reddy. I am a research scholar and am currently working on graph algorithms. I am looking to find a 6-regular graph that does not have small 3-regular subgraphs. For example, I want to generate a 6-regular graph of size $poly(k)$ that does not have any 3-regular subgraphs of...

1
Q: Arduino IDE Auto Format Error

SnowmanWhenever I try to format a sketch in the IDE (1.8.19) I get this output in the terminal: Exception in thread "AWT-EventQueue-0" java.lang.UnsatisfiedLinkError: 'java.lang.String cc.arduino.packages.formatter.AStyleInterface.AStyleMain(java.lang.String, java.lang.String)' at cc.arduino.p...

1
Q: Open .webloc file with colons in its name using "open"

John PalmieriSuppose I have a file ~/Desktop/foo:bar.webloc. (a) If I double-click it, it opens a particular web page. Great! (b) If in the Terminal I run open ~/Desktop/foo:bar.webloc, it opens the webpage. Great! (c) If in the Terminal I run cd Desktop and then open foo:bar.webloc, I am greeted with % open ...

02:25
1
Q: Is it possible to get one loan for four different (but closely related) purchases?

HiddenWindshieldI'm a pilot. I'm considering maybe possibly building my own airplane from a kit. The problem is that the airframe, engine, propeller, and avionics all come from different suppliers. I don't want to have four different loans, with four times the payments, plus the hit to my credit rating that woul...

4
Q: First-order semantics with minimal metatheory

C. DubussyThe usual semantics of first-order theories involves models who have a structure-set. Hence it is required to use some sort of set theory as the metatheory. However it is also widely known that one can do logic with a minimal metatheory, say a fragment of Peano. If we are using such a metatheory,...

02:55
1
Q: Are all chords that follow a cadence to an execpected chord a deceptive cadence?

bart cubrichIs there a rule for deceptive cadence that can explain all 3 examples below? One of them I am almost positive is a deceptive cadence, but I don't know about the other two. In the first two examples I am using at the jazz band Ball. In measure 8 there has clearly been a I IV II V progression that ...

03:10
1
Q: How to translate "Always studying, never learning" (study vs learned, read vs understand, always vs forever vs never, mastery vs proficiency)

Nate AndersonMy friend observed that I like to study Mandarin. It's true, I have been studying for many years, but I'm not very good... So I want to be modest and say something like this: Always studying, never learning In other words, I have been (and will always be) trying to learn Chinese/Mandarin, but I...

03:33
2
Q: Why I cannot consent to be killed?

Yuki EndoMy friend and I had an argument about the subject. He argued that in some circumstances it should be legal to consent to be killed (e.g. if the dominant kills the submissive during the BDSM session and both are OK with that). I found that idea rather stupid because, in my opinion, it would make s...

CS
CS
03:49
1
Q: Phonemes that rarely have voiceless/voiced distinctions cross-linguistically

centipedeThere are some voiceless/voiced pairs of phonemes that seem to be far rarer than other pairs. For example, /p/ and /b/ are separate phonemes in a majority* of the world's languages (and especially among the most spoken languages), however, /m/ and /m̥/ are distinguished in very very few languages...

1
Q: Can I specify a specific time with seconds with Linux crontab? If so, how?

Peter Andres49 18 * * * mpv ~/Musik/Donau.mp3 This command would play the "Donau.mp3" file at exactly 6:49pm. How could i (for example) specify 6:49'50pm? Thanks in advance!

04:22
3
Q: Transcribing and translating the passage read by Thomas More in Wolf Hall

CyrilI've been trying to correctly determine what the character of Thomas More is reading at the beginning of episode 3 of BBC's Wolf Hall. From the context and my pitiful knowledge of Latin, I understand it to be some book used by inquisitors, but my ignorance of Latin spelling and grammar makes it a...

3
Q: Using an e-bike as part of an endurance training?

RenaudI recently bought an e-bike and use it much more than my conventional "fun bike" (still need to do some maintenance on it), and was wondering how complementary it could be for endurance training compared/in complement to a regular bike. Or in another words, are there cases where the motor can be ...

04:38
1
Q: Letters represented as 3-digit numbers

Jade See attached photo for cipher in question. I know nothing about decryption, so I was hoping one of you would be of help. Thanks in advance. Text only transcription: 494 264 979 716 314 419 979 939 323 494 264 979 419 338 097 097 338 716 846 937 979 582 097 939 716 338 097 582 939 846 979 5...

04:54
1
Q: Please remove the installation medium, then press ENTER - finishing Ubuntu installation in VirtualBox

VadimI've just installed Ubuntu 23.04 in VirtualBox. Now the program says: Please remove the installation medium, then press ENTER: (please see the first screenshot.) I've seen this post, this post and many others addressing exactly the same question, however, none of them have helped. How am I supp...

2
Q: Is it possible to have satelites (natural or not) orbit the same celestial object in different directions ? (clockwise, counterclockwise)

DemisIs it possible to have satelites (natural or not) orbit the same celestial object in different directions or is the orbital direction dependent on the celestial object's spin ? Also, is the spin of a celstial object dependant on how it orbits a bigger celestial object ?

05:16
1
Q: scp many files without reentering password, all different paths

theonlygustiHow can I achieve the result of many of scp ~/here/is/one me@remote:~/where/it/goes scp ~/yet/another me@remote:~/the/second/place scp ~/the/number/three/one me@remote:~/foo/bar/qux with only entering the password for that remote user once?

3
Q: How to use argument twice in printf in shell?

theonlygustiprintf %s%s one two prints onetwo but I would like oneonetwotwo How can I do that?

2
Q: Is it ever rational to stumble onto the conjunction fallacy in probability?

user107952The conjunction fallacy is the phenomenon where many people believe that the probability of the event (A AND B) is strictly greater than the probability of the event A. It is usually thought of as an error in reasoning. However, I recall reading a paper in a philosophy journal where the author cl...

2
Q: Does the 10309 Succulents set contain only non-unique bricks?

KarstenFirst-time poster here: I write on innovation topics, have been Lego-infatuated for maybe 45 years now. My kid and I were assembling the 2022 succulents kit (#10309) and I noticed a piece that looked like a Robin Hood-type hat. Turns out it was (Forestman hat - 6395137). I've since disposed of th...

4
Q: Why did Jesus say his testimony was is not valid in John 5:31 and in John 8:14 Jesus says his testimony is value

GraceWhy did Jesus say his testimony was is not valid in John 5:31 and in John 8:14 Jesus says his testimony is valid? John 5:31 - If I bear witness concerning Myself, My testimony is not true. John 8:14 - Jesus answered and said to them, "Even if I am bearing witness concerning Myself, My testimony ...

CS
CS
05:32
2
Q: Induction cooking: why ferromagnetic pan?

Stallmp In the image above, we have the principle of induction cooking. An alternating current is run through the coil, which causes a change in flux. This change in flux induces eddy currents in the conductive pan, and by Joule heating/resistive heating (P=VI), this causes the pan to heat up. So the o...

05:52
1
Q: Where is the source that Mordechai left the king's palace wearing teffilin?

TargumI had seen written that Mordechai left the king's palace (Esther 8:15) wearing teffilin. Can someone help me locate this source? In this Shiur, https://alldaf.org/p/116885 he mentions in the beginning about the Gra and Chasam Sofer mentioning either that Mordechai couldn't have been wearing teffi...

1
Q: If a jetliner is giving TOGA thrust but never releases the (parking) brake, will the brakes heat up?

NicoFrom my - admittedly - limited knowledge of physics, the energy generated from the engines needs to go somewhere; will it go into the brakes or does it just dissipate into the air?

 
1 hour later…
DIY
DIY
07:08
2
Q: Floor joist repair help!

ZiggySo I recently had high hats installed and afterwards I took a look at the electrician’s (butcher’s) work and this is what I see to my disbelief. My question is will those code compliant metal joist repair/notch repair plates that are sold online be enough to repair these? They are in a living roo...

3
Q: Count the ways to divide 18 colored and numbered balls into 6 groups

ChesxConsider a box has $18$ balls, $6$ white balls numbered $1$ to $6$, $6$ black balls numbered $1$ to $6$ and $6$ red balls numbered $1$ to $6$. We have to divide all $18$ balls into $6$ groups (groups are not numbered) such that each group consists of one white, one black and one red ball and diff...

TeX
TeX
07:29
3
Q: Text not respecting \text within NewDocumentCommand within align*

HarithWithin an align* environment I have lines of the form \Rightarrow &<\texttt{Program Code}, [a \mapsto 1, b \mapsto 2]> &\text{Rule Name}\\ \Rightarrow &<\texttt{Program Code 2}, [a \mapsto 2, b \mapsto 3]> &\text{Rule Name 2} \\ Giving I thought of making a macro to make this much easier, of th...

CS
CS
07:41
1
Q: Did God forcefully make the Pharisees to not believe in Jesus?

CuriousGuyJesus accuses the Pharisees that if they believed Moses, they wold have believed him as Moses wrote about him in John 5:46-47 46For if you believed Moses, you would believe Me; for he wrote about Me. 47But if you do not believe his writings, how will you believe My words?” Jesus also accuses th...

ELL
ELL
08:06
2
Q: "Run north of" meaning in the context

dan The 30-year fixed rate mortgage has run north of 6% all year. I saw the sentence from here. In my opinion, the word 'north' is a slang usage as defined in the free dictionary: Slang, Into a better condition, as of increased value: an investment that went steadily north until the market crash. ...

1
Q: Indicators and sampling with/without replacement

DanjxI was reading the problem in this post: Solving for an expected value from discrete random variables: An urn contains $30$ marbles of which 8 are black, $12$ are red, and $10$ are blue. Randomly, select four marbles without replacement. Let $X$ be the number of black marbles in the sample of fou...

08:31
6
Q: Book where the protagonist’s brain has a switch between two selves

CorwinMacleodLooking for a book where the protagonist’s brain has a switch between two selves, identical. He flips the switch a few times and notices no difference. Until near the end of the story when he flips it and loses control to the other self, who he’s been suppressing without knowing. And who has by...

CS
CS
2
Q: How do batteries lose capacity in winter?

哲煜黄One problem of electric vehicles is that the battery capacity often shrinks under low temperatures. Some batteries can lose as much as 50% of capacity in winter. What I don’t quite understand is how the capacity shrinks. Does the low temperature prevent the batteries from being fully charged or f...

 
2 hours later…
RPG
RPG
10:46
4
Q: Would a magic charm that you can obtain(that has to be refueled by weather energy) be able to be reobtained with a spell that changes the weather?

TieflingDragon84I read the Dragon of Icespire Peak campaign book, and saw that the Charm of the Storm has to be refueled by nonmagical(in the sense that a spell that deals lightning damage can't be used, and similarly a dragonborn's lightning breath weapon) lightning energy striking the lightning rod 3 times. I ...

11:22
1
Q: Get the scriptPubKey from a Taproot address

ChristianOConnorI have this function that converts a Bitcoin private key as an integer to a public key and an address. def get_seg_v1_from_pkey(imported_key): imported_key_toint = int(imported_key) privKeytoHex = imported_key_toint.to_bytes(32, 'big').hex() prv = HDKey(privKeytoHex) prv_tnet = TN...

1
Q: Is it possible to detect a CGA card on an IBM PC 5150 by write/reading the Motorola 6845?

don brightI am trying to programatically detect the CGA card on old IBM 5150-ish PCs. The Paku Paku game source code doesn't directly detect it. The strategy is to detect VGA, EGA, Tandy, PCJr, etc etc, then if none of those "hit", assume it is CGA. Similar code is found here: https://forum.vcfed.org/inde...

CS
CS
3
Q: Is J.R.R.Tolkien's "translation" scheme found in real life?

EugeneA summary of J.R.R.Tolkien's "translation" methodology: J.R.R.Tolkien was best known for his fantasy world - Middle-earth. He almost always presented his works as translated from ancient documents that somehow were passed down to him, e.g. The Lord of the Rings translated from the Red Book of We...

11:41
4
Q: Closest idiom to the Arabic: "You made my neck as small as a sesame seed"

AdamIn Arabic, the idiom "You made my neck as small as a sesame seed" is used to mean that someone related to you or a friend, put you in an embarassing situation with others. This idiom is usually used by parents when their children make them anything but proud. People who have long necks are assume...

11:52
1
Q: Custom for Students to give gifts to teachers

Raul Valdez Jr.Is it proper for a student to give gifts to their Rabbi.

3
Q: How will the expansion of the Sun influence Earth as a celestial body after 5 billion years?

DemisScience news have flooded our news feed again about how our Sun could swallow Earth. This time due to a real documentation of a similar event in an other system. theguardian washingtonpost From what I've read over the years in various cosmology articles about the future of our Sun, there are thre...

3
Q: Weight of the defining function of a Bruhat cell in a simply connected semisimple group

Allen LeeLet $G$ be a connected semisimple simply connected group over an algebraically connected field. Let $w_0$ be the longest element in the Weyl group $W$ and $s_i$ be a simple reflection in $W$. Choose a Borel subgroup $B$ in $G$. It is known that the closure of the Bruhat cell $Bw_0s_iB$ in $G$ is ...

2
Q: Deriving the normal distribution from a simpler function

RTFI'm attempting to tackle an integration problem from a beginning calculus text and running up against a question that by all appearances at least is far more difficult than others. The problem begins by mentioning (without proof) that it just so happens to be a fact that $ \int_{-\infty}^\infty e...

12:17
2
Q: Why is precision so low despite setting working precision to 25?

Numerical DisintegrationI am currently generating some Gauss-Jacobi quadrature rules. Along the way, I have to find zeroes of Jacobi polynomials. In particular, I have this piece of code: n = 20; lambda = -0.91103252643507214171824629081; roots = Values @@@ Solve[JacobiP[n, 0, lambda, 2*x - 1] == 0, x, WorkingPrecision ->...

2
Q: ToPolarCoordinates not working with units

user90441I am trying to convert some quantities with units from rectangular to polar coordinates (to get the magnitude and angle). It seems that ToPolarCoordinates command does not calculate the angle when units are present. Does anyone have a solution to this (other than removing the units)? N1 = Quantit...

3
Q: Good reasons the powerful good guys don't fight the powerful bad guys

abishaij1It's a typical trope in stories, but why don't the powerful good guys fight the powerful bad guys? Usually a group of nobodies need to grow in power to the point that they're able to face the powerful bad guys themselves. I'm making a setting and I need some good reasons for why this is the case....

2
Q: Is the isomorphism problem solvable for torsion-free groups?

Aivazian ArshakGiven two finite presentations of torsion-free groups, is there an algorithm to determine whether the given groups are isomorphic or not? I have found results for narrower classes (for example, they are briefly reviewed in The isomorphism problem for finitely generated fully residually free group...

3
Q: Where in the ROC curve does it tell you what the threshold is?

KatsuIn my understanding, the ROC curve plots the True positive rate and the False positive rate. However, I've also read in other places that the ROC curve helps determine where the threshold for classifying something as "1" should be. Eg. Lets say if the probability of an an object is a "dog" is gr...

12:52
4
Q: How is this equivalence for flipping an equation of ket-vectors to an equation of bra-vectors, true? (Complex conjugate "distributes" across product?)

Andrew CheongI'm given, in the setup of an exercise (not even the exercise itself): $$|i\rangle=\alpha|u\rangle+\beta|d\rangle \implies \langle i|=\langle u|\alpha^*+\langle d|\beta^*$$ I'm confused. Why is that self-evident? I was given few axioms, the seemingly relevant one here being: $$\langle A|B\rangle=...

1
Q: Is it a good idea to replace files in etc with symlinks?

php_nub_qqI don't switch machines that often, but I don't want to be bound to 1 machine. Often the reason I'm not upgrading my hardware is because I don't want to be setting up a new machine. So far I've made efforts into concentrating most of my stuff in the home directory so that will be easy to backup a...

13:08
1
Q: Solve unable to provide the full solution

codebprI have the following Mathematica code: $Assumptions = {r \[Element] Reals, r >= 0, rh \[Element] Reals, rh > 0}; S[rh_] := \[Pi] rh^2 M[rh_, qe_, qm_] := 1/2 Sqrt[\[Pi]/S[rh]] (S[rh]^2/\[Pi]^2 + S[rh]/\[Pi] + qe^2 + qm^2) qe = SolveValues[\[Phi]e == qe (1/rh - 1/r), qe]; f[r_, rh_, qm_, \[...

1
Q: Calculating the classical OR gate in a 3 qubit (+1 ancillary qubit) circuit

HamidehI have a 2 qubit (+1 ancillary qubit) circuit in Qiskit which calculates the classical OR gate (q0 or q1) as follows: from qiskit import QuantumRegister, ClassicalRegister, QuantumCircuit, execute, Aer for input in ['00','01','10','11']: mycircuit1 = QuantumCircuit(3,1) #Initia...

13:43
3
Q: Application of Rolle's theorem in real analysis

Abcd If $f$ is continuous on $[-2,2]$ and thrice differentiable on $(-2,2)$ and $f(2)=-f(-2)=4$ and $f'(0)=0$ then there exist $x\in(-2,2)$ such that $f'''(x)\ge3$ I have solved that We know that $f$ is continuous on $[-2,2]$ and thrice differentiable on $(-2,2)$, so by the Mean Value Theorem, there...

13:59
1
Q: Are there teachings of the Catholic Church on the similarity between Christ and the ram that Abraham sacrificed?

Kadalikatt Joseph SibichanWe see in Gen 22:13 how Abraham saw a ram caught by the horn in a thicket and sacrificed it in lieu of Isaac. Coming over to New Testament we see Jesus being made to wear a crown of thorns. It is believed that the thorn Jesus wore had been made from the twigs of bush. We see here a strange resemb...

14:15
1
Q: Is "The good food keeps us healthy and adds pleasure to our lives." grammatically correct?

chupper100Is this sentence grammatically correct? The good food keeps us healthy and adds pleasure to our lives. I believe that the article "the" is incorrect, but why is it?

3
Q: What is the purpose of mixing brake cable housings?

greenoldmanJagwire has in its offer Road Pro Brake Kit -- https://jagwire.com/products/diy-cable-kits/2017road-pro-brake-kit. The housing is two segments -- compressible next to the brake levers and for the rest -- compressionless. Why mixing two types of housing? My only guess is that for road handlebar th...

3
Q: Is the pseudopotential designed for GGA also suited for meta-GGA?

JackVASP provides two sets of pseudopotentials(PP) for LDA and GGA respectively, but as I understand the PP is dependent on the exchange-correlation functional I use, so if I am using meta-GGA, could I use the PP designed for GGA?

CS
CS
14:59
2
Q: Why is there no "add immediate" instruction in the Atmel AVR instruction set?

NewbyteI've been doing some AVR assembly programming for a university course, and I recently happened upon a situation where I would have wanted an "add immediate" instruction. However, no such instruction seems to exist within the Atmel AVR instruction set. I find this weird given that there are immedi...

TeX
TeX
15:13
2
Q: Sentence in a white rectangle

Roland ChastainI would like to add to my document sentences which summarize the parts of the text, like this: Let's say that I try to reproduce this HTML page. The best I found is this: \begin{tabular}[t]{c} \textbf{\textit{L’allégorie de}}\\ \textbf{\textit{la caverne.}} \end{tabular} Maintenant, repris-je, ...

2
Q: In Revelation 16 who is the wrath of God being poured out on?

ziamalOn who is the wrath of God being poured out on? Aren't the wicked harvested in revelation 14? Rev 16:1 - Then I heard a loud voice from the temple saying to the seven angels, “Go, pour out on the earth the seven bowls of God’s wrath.”

15:31
1
Q: If the Latin word for goose, "anser", really comes from Proto-Indo-European *gjhh2ens, where did the *gjh disappear? Why didn't it change to 'h'?

FlatAssemblerIf the Latin word for goose, "anser", really comes from Proto-Indo-European *gjhh2ens, where did the *gjh disappear? Why didn't it change to 'h', as in "homo" (human) from *gjhmo?

2
Q: Is it okay for a recommendation letter to be written by a professor in a different area of expertise than the target PhD?

xade93If I am going to apply for a Ph.D. in Computer Science, with a specialization in programming languages, is it okay to use a recommendation letter from other areas of Computer Science, say cryptography? Thanks.

TeX
TeX
1
Q: Reference three or more appendices in LaTeX article class

V KahnI am writing a document using article class. I need to refer to multiple appendices. I am using hyperref and cleveref packages. When I refer to two sections in appendices, it writes Appendices A and B. When I refer to three sections in appendices, it writes Appendices A to C (see the screenshot b...

1
Q: Automatically obtain feature equations

chen chenHow can I automatically obtain the characteristic equation of a second-order differential equation given any expression? Assuming a second-order differential equation is given as follows: x''[t] + x'[t] + 16 x[t] == 0

15:53
2
Q: Application of Dirichlet integral

Abcd evaluate $$\frac{\sin1+2\sin\frac12+3\sin\frac13+\dots+n\sin\frac1n}{n}$$ as $n$ tends to $\infty$ I think $$\lim_{n\to\infty}\frac{\sin(1)}{1} + \frac{\sin\left(\frac12\right)}{2} + \dots + \frac{\sin\left(\frac1n\right)}{n}$$ This is known as the Dirichlet integral, and it is well-known to be...

16:18
2
Q: Stockpot size required - formula to calculate

user15676is there a formula for working out the pot size required for specified bone weight and water volume? Eg. I would like to make beef stock using 5kg of bones and 5 litres of water, what pot size do I need? Thanks

16:44
2
Q: What is the probability that exactly one pair of twins exists in 5 people chosen at random from a group of 6 pairs of twins?

RandomCoder59A pyschology experiment involves 6 pairs of twins. In one test, 5 persons are randomly chosen from them. What is the probability that, among the 5 persons, there is exactly one pair of twins? (a) 2/11 (b) 20/99 (c) 1/5 (d) 3/7 (e) None of the above My attempt to solve this on my paper was l...

16:57
2
Q: Questions wrt taproot's message digest signing

karaskBIP-341 describes how to construct the message to be signed for taproot (subsection Common signature message). It mostly makes sense but I have a couple of quick questions: Is the ext_flag 0 when spending default key path and 1 if spending with a script? In the 'Data about this input' it says t...

17:44
1
Q: What should a proper grid for a bevel look like?

Ivan SokolovI have a box with a simple form and a bevel. The box looks like on a picture. The bottom surface is narrower than the top surface. The grid of the top surface is OK. But I doubt the grid of the narrow surface, there are dents here. What should a proper grid look like?

1
Q: Is asking for details of a future raise alright even if it's months away?

M.KI theoretically had a contract review (salary raise, etc.) on December last year but it was not performed. I was told that it made no sense to do so as for that time I had only been there for half a year. It made sense to me, same initial situation as in here. The future contract review is Decemb...

18:08
4
Q: What path should I set for the bash shell with usermod?

SantiagoI connect to a server via ssh. Now i wanted to set the shell to bash, because at the moment the shell is sh. sudo /sbin/usermod -s /usr/bin/bash santi Should i use /bin/bash or /usr/bin/bash or does it not matter?

18:22
2
Q: Problem 3.14 from Kirby's list

AgelosIn his famous list of Problems in Low-Dimensional Topology, Kirby states the following as Problem 3.14 (B), which is attributed to Thurston: Conjecture: Suppose $G$ (an arbitrary group I suppose) acts properly and discontinuously on a contractible 3-manifold with compact quotient. Suppose also t...

1
Q: iCloud folder icons sync

a06eI have a folder on iCloud Drive. On the Mac, I set the icon of this folder to some custom icon. However when I see this folder from my iPhone, it has the normal blue folder icon, not the custom icon I set for it on the Mac. Is this expected behavior? Is there a way to get iCloud folder custom ico...

18:47
1
Q: Could all of human population fit in China, India, and Mongolia?

MishimaI have a scenario where Aliens must escape their Star system because a star 5 light years away from them is going nova soon. They find humanity and learn all about them in a few years - our whole history, the biology of all animals, etc. Then they establish contact and send us gifts that improve ...

1
Q: Why do some sheet-music arrangements harmonize anticipation notes?

armani Throughout this arrangement from the song "Don't look back in anger" by the band "Oasis" the arranger seems to harmonize the anticipated melody note as shown in green. But the actual song has chord changes on beat 1. Why would any arranger change this ?I can't hear any sonic benefit by anticipat...

CS
CS
3
Q: Grassmann parameter in supersymmetry

CakeLet's consider a super Lagrangian given by $$\mathcal{L} = -\partial^{\mu}\overline{\phi}\partial_{\mu}\phi + i\bar\psi\gamma^\mu\partial_\mu\psi -m\bar\psi\psi\tag{1}$$ Where a fermionic field $\psi$ is coupled to bosonic scalar field $\phi$. In the process of defining supersymmetry transformat...

1
Q: Is it possible get good things back in life, by doing bad things to others?

Amruth AIt is often claimed that doing good things for others will result in good things happening for the giver in return, but can the following statement be true?: Do bad things to others and good things will happen to you in return.

19:13
1
Q: Only for the top ones

Prim3numbahI'm looking for an 8-letter word. What's the word? In between, from left to right: B___Y_____B____G____R__

GIS
GIS
3
Q: Calculate distance to the nearest other point in a layer in QGIS

SethinacanI would like to calculate the distance to a point's nearest neighbour within the same layer. I can do distance( closest_point( $geometry , $geometry ),$geometry) But that includes only the current feature so the result is always 0. I need a way to collect all the features and filter out the cur...

19:30
3
Q: Is there a record of a rabid human attacking another human?

Jimmy G.I was just reading the Wikipedia page on rabies, and the following claim is made: Although it is theoretically possible for rabies-infected humans to transmit it to others by biting or otherwise, no such cases have ever been documented, because infected humans are usually hospitalized and necess...

1
Q: Segmentation faults after installing .deb packages

LaurenceI have a Pi Zero (not WiFi) running Raspberry Pi OS (2023-05-03). I have no way of connecting it to the internet but I wanted to install two packages: feh unclutter So I downloaded both (armfh binaries) from the Debian repo (bullseye stable releases), and installed them using dpkg -i. After res...

ELL
ELL
1
Q: One word for highly frustrated/hopeless

nickuIs there a stronger word for "highly frustrated" or "feeling very hopeless"? So If I want to tell someone that I am highly frustrated by the work I am doing or convey that it's very demotivating, what are the alternative words I can use there?

3
Q: Could the static charge build up during flight be sufficient to power aircraft systems?

user1238680Aircraft build up a static charge during flight which is currently discharged through static dischargers: I recently read the abstract and summary of this paper:https://www.sciencedirect.com/science/article/abs/pii/S1359836820334235 Which explores using certain types of polymers with conductive ...

5
Q: What is so special about Pythagorean distance? Why squaring?

Join the party P.A.R.T.Y.It seems that squaring appears not only in classical Euclidean geometry, but also in physics and statistics. Not too long ago, 3b1b released a video on where pi comes from in the normal distribution equation. In short, the assumption of the uncorrelatedness of two parameters (in the case of a two...

19:53
2
Q: How can I make sure my edge extrusion is straight towards the middle?

DPlaygroundI am trying to create an opening in my object. I deleted the faces and extruded the remaining edges to create the desired shape, as you can see in the first picture. As you can also see, it is also deleting parts on the upper and lower side. I just want to have an ellipse like shape, as can be se...

GIS
GIS
20:10
1
Q: QGIS: centroid of polygon layer

N_LLCI would like to determine the center of this layer, when I look for the centroid I get the centroid of each separate shape but I want the centroid of the total layer.

2
Q: Blackscreen on 27” iMac 2017

RaymondI own a iMac 27” retina 2017. It won’t turn on again. The screen is black and stays black when turn the iMac on and off. I even hear nothing when I turn the Mac on. No click sound, no chime, nothing. But now “The strangest thing”… When I connect a USB lightbulb to the Mac, the lightbulb works! I ...

20:26
3
Q: Count and positions of an element in a given list

phy_mathI want to implement an operation on the following list: For a given arbitrary length of list $\{a1,a2,a3,a4,a5,a6,a7,a8,\cdots\}$, the task is to find the number of zeros and their position(s). So I want my output to be: {number of zeros, {position(s) of zero(s)} For example, $\{0,1,2,-1,0,1,3,...

1
Q: Replace hyperbolic functions with trigonometric ones

And RIn the matrix exponential which I need for a certain problem, I often encounter terms like Sinh[ Sqrt[ b^2 - a^2 ]]. In my problem, a > b and, therefore, the previous expression is actually I Sin[ Sqrt[ a^2 - b^2]]. Is there a way to enforce Mathematica to use trigonometric functions instead o...

CS
CS
1
Q: Transimpedance Amplifier Not Outputting Voltage

FridgeMagnetPoetI'm trying to build a transimpedance amplifier to convert the current from my photodiode to a voltage that can be read using an ESP32. The components I am using are: OPA170AIDRLT Operational Amplifier (link) QSB34CGR Onsemi Photodiode (link) 97.6kΩ Resistor 0.15uF Capacitor I designed my circui...

2
Q: A question from number theory on divisibility

Abcd Let $p_1 < p_2 < . . . < p_{31}$ be prime numbers such that $30$ divides $p_1⁴ + p_2⁴+ · · · + p_{31}⁴$. Prove that $p_1 = 2$, $p_2 = 3$ and $p_3 = 5$. We know that $30$ divides the sum of the fourth powers of the $31$ prime numbers, so $30$ must also divide the sum of their residues modulo $30...

20:44
2
Q: Change number of segments for each ring on UV sphere (Geometry Nodes)

Allan KristiansenHow do I change the number of segments for each ring on a UV Sphere in Geometry Nodes? The top and bottom rings should have fewer segments so that the letters don't overlay each other. Here's my setup: Thanks in advance :)

TeX
TeX
2
Q: Missing endcsname when passing command to hypersetup

dikdirkI'm trying to manually process a list of authors. The logic works in the document, but not it does not seem to work when I pass it to hypersetup. \documentclass{article} \usepackage{authblk} \usepackage{etoolbox} \usepackage{hyperref} %%%%%%%%%%%%%% Logic to process author list, e.g., part of so...

20:59
2
Q: Will PS4 game discs work on PS5 Console?

AsishI recently bought a PS5, after loooooooong wait. So, the first few games that I plan are - Bloodborne and Demon Souls. The only discs for PS4 available on Amazon India are that from PS4. So, will those discs work? P.S - Although, I mentioned only Bloodborne, I want a general thing about running ...

2
Q: macOS icon suddenly appeared on desktop and can't remove (Ventura)

InitialConditionsSee attached photo. The macOS volume has appeared as an icon on my desktop. I can't seem to remove it, and wonder why it has appeared. It doesn't appear to be an alias/shortcut. If I go into finder this item is not listed under 'Desktop', nor is it listed if I use the command line to list items i...

21:19
3
Q: Help translating a suspected idiom

jesuisirlandaiseI'm translating the following sentence about Macron and his attitude towards the pension reforms, and how people are too hyperfocused on Macron instead of the entire republic and how that needs to change: "Quand Emmanuel Macron s'enrhume, c'est toute la France qui tousse. On parle de crise de rég...

CS
CS
1
Q: How can there be a Big Bang without a singularity?

مروان حسينI have read to Sean Carroll that he says that the Big Bang model is correct, but the Big Bang event is incorrect, so what is the difference? And everyone knows that the Big Bang model is linked to the Big Bang event, which is the singularity, so how can there be a Big Bang without the singularit...

3
Q: Is there a way to stop bash from parsing zsh code?

paradroidI have a file which is sourced from .bashrc and .zshrc which contains some functions. It was previously two separate files for each shell, but I am now using a single file as the files were nearly identical and it's easier for me to manage a single functions file. There is a function which is dif...

TeX
TeX
21:38
1
Q: Resizing the table

dtr43I want to create a table but there are two problems. Firstly, the size of the table is so big. The second problem is a vertical line in the first cell from the left hand. How I can Make the table smaller and also in the center of the page, also how I can remove that vertical line? \documentclass{...

2
Q: How does Tayam, Luminous Enigma interact with Phyrexian Altar?

ChristianIf I have three creatures that each have a vigilance counter on them, can I activate Tayam, Luminous Enigma by removing their vigilance counters and sacrificing them to Phyrexian Altar?

21:54
2
Q: Transistor Leg Orientation Question

Alan AI've ordered a PCB to be manufactured, I now need to solder some resistors and transistor to the board. The transistor is a 2N3904 and it's place on the board is Q1. As can be seen the pins are aligned in triangular arrangement with the middle leg offset. Is this a special type of transistor bec...

RPG
RPG
3
Q: Does a Druid with a Sword of Vengeance have disadvantage on claws and bites?

Niall FormanIf you're attuned to a Sword of Vengeance you have disadvantage on attack rolls made with other weapons. Does that include the natural weapons of a wild shaped druid?

3
Q: Where was the AT&T radio station in 1942 in New York?

ChuckHow did transatlantic telephony of AT&T work in 1942? Where was the radio station? In New York? I am studying the A3 scramble machine Roosevelt and Churchill used, which was replaced with the SIGSALY machine in 1943. Both had to transmit the call via rhombus antennas across the ocean. Where was t...

22:44
1
Q: How to freeze fresh ingredients without them freezing together

XophmeisterI am looking to freeze some cooking apple slices, but this question applies more broadly to any fresh ingredient with a non-trivial water content. Just dumping them in a freezer bag/container and sticking them in the freezer inevitably results in the individual pieces frozen hard together. Is the...

22:57
1
Q: weird block check after a reindex

nikois it normal that after a reindex the block check restarts strangely fast up to a certain point? My node was already synced. The GIF is not speeded up. It's the real speed of the sync... Thanks in advance.

2
Q: I have been invited for a post-interview chat for a position I am not selected. Should I still attend?

mishsxI am currently a part-time employee at Home Depot. After a nine-month job search, I finally landed an interview at Home Depot through their internal portal. Although the interview seemed positive, I now have a post-interview chat coming up, despite the careers page indicating my application won't...

DIY
DIY
2
Q: Is it safe to use a clothes dryer while waiting for foam gasket for dryer blower wheel to arrive?

Diana KodnerCan you safely run a dryer without the foam gasket around the blower wheel? We're waiting for the part to come in, and the repairman said it would be okay to use it. We have a GE Spacemaker that is about 24 years old. While repairing soemthing else that caused a loud squeak, the foam gasket was f...

CS
CS
2
Q: Equivalence between diode and transistor

BowParkIn The Art of Electronics by Horowitz-Hill, 3rd edition, in Figure 2.71, the following equivalence is shown: simulate this circuit – Schematic created using CircuitLab With that connection, the collector of the BJT is short-circuited to the base: base and collector are at the same potential. S...

3
Q: Limit of products of differences of logarithms

Roberta BerettaMy first post here, hope doing everything the right way. I'm struggling with the following limit: $$\lim_{x\to+\infty}\ln(3^x-x)\left[\ln(x^4+1)-2\ln(x^2-x)\right]$$ First of all I used logarithm properties to transform the function in the form $$\ln(3^x-x)\ln\bigg(\frac{x^4+1}{x^4-2x^3+x^2}\bigg...


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