Wolfram Mathematica

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Mark S.

01:52

Any ideas how I can use a more functional style to eliminate the index i in Table[ Map[ Append[Drop[mylist,{i}],#]&, f[mylist[[i]]] ], {i,Length[mylist]}]?

2 hours later…

yode

03:45

@xzczd Oh, sorry, I do mean 12.. I'm expected about a list about the newest functions ..

5 hours later…

Carl Lange

08:16

@Kuba ^ The sum of all knowledge

Kuba

@MarkS. I think it depends of what f does. Could you provide a simple example of mylist, f and the expected result?

@CarlLange only if titles started with "All..."

Carl Lange

08:43

@Kuba This is true. You've ruined my favourite joke! :(

Kuba

@CarlLange at least now you can ruin it for others who mention it :)

1 hour later…

Carl Lange

09:46

In my opinion this is a troll account - this is the second time it's asked this question after the previous one was closed. mathematica.stackexchange.com/questions/189119/…

From elsewhere on the network ^

I don't know how to flag an account though.

Kuba

10:00

@CarlLange thanks, handled.

1 hour later…

L. Aravind Kalaimani

11:10

How to clacute the age from date of birth my d.o.b is 18.03.2000 what is my age

halirutan

11:39

@L.AravindKalaimani Hello and welcome. You have asked the same question on different sites.

Can you tell us why all the answers don't help you?

@L.AravindKalaimani The thing is that asking such a question has either a deeper meaning or no meaning at all and you simply try to engage people in useless discussions. If the question has a deeper meaning for you, then please explain why the simple anwser

"On 18.03.2019, you will be 19 years old. So currently, you are still 18"

Does not satisfy you.

If you like, you can calculate your age in seconds

For this, you can use the Unix time which is the number of seconds since January 1st, 1970.

In[3]:= seconds = UnixTime[] - UnixTime[{2000, 3, 18}]

Out[3]= 593700246

Jose E Calderon

11:59

HEllo All

Kuba

@JoseECalderon Hello

Jose E Calderon

I have noticed a low participation and response to DeviceOpen of Arduino and Serial. The documentation has been in draft for the last 4 years.

Anyone here has worked with hardware interface?

community.wolfram.com/groups/-/m/t/1571051?p_p_auth=EW8lNo01

Hello @Kuba

halirutan

12:16

@JoseECalderon

This looks not OK

If[dataDeviceExecute[dev, "SerialReadyQ"],

Mark S.

12:35

@Kuba Whoops, you're right. f takes a string and returns a list of strings (whose length depends in a complex way on the original string). That definitely matters. So, for instance, you could pretend f is given by f[str_] := Append[StringReplaceList["hello", _ -> "X"], "Y"]. I actually care about Union Applyed to the thing I said before. For example:...

If mylist is {"hi", "@", "kuba"}, Union @@ Table[Map[Append[Drop[mylist, {i}], #] &, f[mylist[[i]]]], {i, Length[mylist]}] outputs:

{{"@", "kuba", "hX"}, {"@", "kuba", "Xi"}, {"@", "kuba", "Y"}, {"hi", "@", "kubX"}, {"hi", "@", "kuXa"}, {"hi", "@", "kXba"}, {"hi", "@", "Xuba"}, {"hi", "@", "Y"}, {"hi", "kuba", "X"}}

If this deserves making it's own question on the site, just let me know. I just wondered if someone could say "oh, that's Mapthread[,3]" or whatever.

Kuba

12:57

@MarkS. with your example f does not really depend on str_

3 hours later…

KraZug

16:01

Is there a function to go from a mesh to an image? ImageMesh goes from an Image to a Mesh, is there a function to go the other way?
Alternatively, what I actually need is a function to give me the convex hull of a curve in a binary image, if there is a better way to do that.

1 hour later…

Mark S.

17:04

@Kuba Sorry, that was a copy-paste error. Of course "hello" should have been str.

tarit goswami

I am not getting Fourier series for Sqrt[x*(1-x)] in Mathematica.. can anyone kindly tell me how to get that? Is there any other function than FourierSeries ?

halirutan

17:32

@KraZug ComponentMeasurements has a "ConvexVertices" properties.

1 hour later…