The h Bar

1:41 AM

@Slereah ^

1:58 AM

@BalarkaSen Is it a good or bad idea to take complex analysis at the same time as real analysis?

Is one going to help me for the other?

they're different enough so it doesn't matter for an intro course

as long as you have intro analysis (advanced calc) before

@SirCumference why are you asking him. I thought I was supposed to be your math/GR mentor

but I see how it is

@diobuceulb What is "intro analysis"? The highest level calc course before them is Diff Eq

basically just analysis I and II in most universities

you take those before real or complex

@0celo7 Ok what's your opinion

@diobuceulb Analysis I is also called Real Analysis I here :/

2:05 AM

what year is it?

Either semester, if that's what you mean

inference dude

Well, I have no idea what order these go in, so it can be taken any time technically

All they require is calc iii

is that vector calc

Yes

2:07 AM

is your calc III course proof based?

No, but my Linear Algebra was

@SirCumference have you had any analysis

@0celo7 No

hmm then i still think it should be fine if you take them in any order

then I wouldn't take complex

2:07 AM

unless the complex course has it as a prereq

unless it has no preqresites

Well Calc III is the prereq of both, but that's it

then it's fine

you can do it in any order

Ok, thanks!

but i'd say do one in each semester

not at the same time

2:08 AM

the prerequirites are allways too much, never too little

Honors Complex and Honors Real are only offered in the same semester :/

(I can't spell that word)

@SirCumference okay then it's probably fine

The other option would be to wait a year between them, but that'd get complicated

no don't just do it

2:09 AM

Don't just do what?

both

Don't do both?

do both

sorry comma

,

fixed

Welp, I'd also be taking them alongside QM and EM2

This is gonna be fun :/

QM1?

is it intro qm

2:11 AM

Yes QM 1

your first QM?

Yep

that is weird

Why

because normally before QM1 (assuming it's the QM that requires linear algebra and vector calc beforehand) you take intro QM which is just basic stuff

in your sophomore year

simultaneously with calc III

2:13 AM

Yeah, that's Modern Physics, taking it now

oh ok

Evidently there are too many courses I don't know what to do with, and not enough requirements on the physics major

Some of them are math courses, others like programming or electronics or statistics

forget about it dude

courses are a lot of work

if you're interested in the topics then learn them by yourself

@diobuceulb I will not come out with the same knowledge as if I'd taken them

that's not true

well it is

but it doesn't mean it will be less

different is not always bad

2:19 AM

Even astronomy, which I read on my own all the time, doesn't cover a lot of the important stuff covered in class

@diobuceulb True, but with mathematical courses, the structure is a big deal

then you're not reading the right books or doing the exercises

don't blame self learning blame yourself

a lot of people in this chat are real life evidence that it works fine

Welp, I've never been able to teach myself as well as you guys have, so I guess I accept self failure

But in seriousness, I'm amazed by how you guys have been able to do it. I've tried and I've never been able to, without that incentive/fear of the grade

And considering how important some of these courses are, I need to make sure I understand them well

don't blame yourself

2 mins ago, by diobuc eulb

don't blame self learning blame yourself

lol

by that I meant you should try and see what you did wrong

and fix it and try again

did you do enough exercises?

did you read enough/the right books?

did you look through the references for further details?

etc

2:24 AM

Meh, learning important subjects is a lot of work and mental strain. The grade is what incentivizes you to keep going no matter how much you'd rather procrastinate

Obviously I enjoy math and physics, but seriously learning them and building an intuition requires a lot of dedication

people who solely rely on courses are normies

by solely i mean like 50% or more

If I'm going to put that much commitment, I might as well get credits for it

and by courses I mean the usual courses everybody takes

yeah but you only need like 20 credits to graduate

there are lot more than 20 credits worth of interesting courses

@diobuceulb Again, the majority of courses I'm planning on taking aren't required for my major, but are important to know. Statistics, electronics, programming, etc.

@diobuceulb ~120

Though by my plan I'd have ~160 by the time I'm done

your scale is different

normally 1 credit = 1 full course = 1 year

a 1 semester course is 0.5

2:28 AM

Oh, huh. In a lot of U.S. schools, more introductory classes are 3 credits each, and difficult/in depth courses are 4 credits each

Seminars are like 1 credit

oh so it's weighted

sucks

Q: Should we leave super wrong highly downvoted posts visible or should we delete them?

Yep :/

But as mentioned, you only need to average 15 credits per semester to graduate in 4 years

That's like 3 tough classes, one introductory class each semester

Physics Meta

6:09 AM

0

This answer is an example of a "super wrong" post. For the purposes of this discussion, a "super wrong" post is an answer which not only is factually incorrect but is incorrect in such a manner as to contribute to the spread of some popular error in physical understanding. These errors tend to ...

discussion answers flagging down-votes quality

Nehal Samee

6:46 AM

Can anyone help me out regarding a problem of compound microscope ?

Focal length of objective=$2cm$...

Focal length of eye piece =$20cm$

An object is placed at$1.2cm$ in front of objective...

Length of instrument is $16cm$...

What should be the magnification ?.

I know that magnification is equal to the product of individual magnification of the lenses...But the virtual image formed in objective is troublesome...

7:13 AM

@JohnRennie Hi! Good morning.

John Rennie

Morning :-)

@JohnRennie Quick question: Does increase in pressure decrease the melting point of ice?

John Rennie

Have a look at the phase diagram in this web page

In particular look at the boundary between ice and water. Pressure makes hardly any difference to the melting point.

Since ice is less dense than water you'd expect pressure to melt the ice, but in practice the effect is vanishingly small until the pressures get very high.

@JohnRennie perfect! Thanks ☺

John Rennie

7:29 AM

Ah, there's a Wikipedia article on the subject. I should have guessed I suppose - Wikipedia has articles on everything :-)

Pressure melting point

The pressure melting point is the temperature at which ice melts at a given pressure. The pressure melting point is nearly a constant 0 °C at pressures above the triple point at 611.7 Pa, where water can exist in only the solid or liquid phases, through atmospheric pressure (100 kPa) until about 10 MPa. With increasing pressure above 10 MPa, the pressure melting point decreases to a minimum of −21.9 °C at 209.9 MPa. Thereafter, the pressure melting point rises rapidly with pressure, passing back through 0 °C at 632.4 MPa. == Pressure melting point in glaciers == Glaciers are subject to geothermal...