https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228295
I have just learned about the new function Splice from this answer. It turns out that this function used to have a completely different usage! (See below.) To me, this seems dangerous, to deprecate a ...
asked by march https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=29734 14 votes
answered by J. M.’s technical difficulties https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=50 9 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228320
Here is what I have tried first.
Thread[f["x", {"1", "2"}]] {f["x", "1"], f["x", "2"]}
But the weirdest thing happened when I ...
asked by kile https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=65814 7 votes
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 9 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228363
I have a function of, say 4 arguments f[a,b,{c,e},d] where some of the arguments are
lists. Given a list of triplets that are possible last-three-arguments to f I’d like to paste them
as arguments to ...
asked by ulvi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1714 6 votes
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 7 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228088
I have a very long list of rules, and using this list of rules I want to see how some elements evolve as I successively apply the next rules on the previous rule.
Here is the simpler version of my ...
asked by Gummala Navneeth https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=66938 6 votes
answered by march https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=29734 9 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228319
I’m interested in the periods of limit cycles of the Wilson-Cowan equations which have the form \[x'(t) = -x + S(ax(t) - by(t) +e)\] \[y'(t) = -y + S(cx(t) - dy(t) + f)\] where \[S(x) = 1 + \] ...
asked by Cheyne https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74162 5 votes
answered by Chris K https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=6358 6 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228423
I have a dataset consisting of points on the plane and a corresponding color. These colors divide the plane into a few distinct regions. I would like to make a plot or diagram that nicely shows this ...
asked by Cheyne https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74162 5 votes
answered by C. E. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=731 4 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228278
I want to find the word "circle" and "circles" in the list.
list = {"circle" , "picircle" , "circles" }
The regex code I wrote which isn’t working:
asked by Aryan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=73776 5 votes
answered by Natas https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=67431 7 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=3242
For instance, is there some way I can say "let A and B be arbitrary real \(m\times n\) and \(k\times m\) matrices, Simplify[Transpose[Transpose[A].Transpose[B]]]" and Mathematica would simplify it to B.A? ...
asked by Niki Estner https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=242 63 votes
answered by Chip Hurst https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4346 6 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=109982
Here is a start.
MapIndexed[Text[Reverse[First[RealDigits[Pi,10,252]]][[Tr@#2]],#]&, Table[{t Cos[t],t Sin[t]},{t,0,16Pi,0.2}]]//Graphics
asked by matrix89 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5379 56 votes
answered by Martin Ender https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2305 71 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=20100
I’m new to Mathematica, and I’m finding it difficult to plot an ellipse. I tried using
Plot[(x/5)^2 + (y/3)^2 == 1, {x, -5, 5}, {y, -3, 3}]
but I’m getting some errors. Is there something wrong ...
asked by Sriram https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=6075 17 votes
answered by Jens https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=245 29 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=16108
I am not sure how to find out what all is included as curated data. For example, are the individual images of each of the 52 cards in a standard deck of playing cards included?
If not, is there a way ...
asked by JohnD https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1629 25 votes
answered by rm -rf https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5 23 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=50718
When importing a data file what are the comment symbols for Mathematica? That is, given a file like this
blabla bulbul 1 2 6 54 7 ... ..
what symbol do I have to put in front of header lines so ...
asked by MaxJ https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=14687 20 votes
answered by george2079 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2079 18 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=24169
I’m new to Mathematica and I need to ask how to graph a sphere, cylinder, etc.. using cartesian equations.
For example in sphere’s case \(x^2+y^2+z^2=1\)
I tried to use Plot3D but it doesn’t ...
asked by German https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7145 7 votes
answered by Dr. belisarius https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=193 13 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=17704
Wolfram|Alpha has a whole collection of parametric curves that create images of famous
people. To see them, enter WolframAlpha["person curve"] into a Mathematica notebook,
or person curve into ...
asked by Simon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34 83 votes
answered by Vitaliy Kaurov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=13 45 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228347
I have problems getting the Citation Management in Mathematica 12.0 to work. It does not work with either EndNote or BibTeX. To do a minimal example, I have the following BibTeX file (libra.bib) ...
asked by jaclea https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7911 1 vote
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228257
I have a list T which contains 3 + 4*E^(2*Pi*I/3). Yet MemberQ[ T , 3 + 4*(-1)^(2/3) ] returns false. One can check for themselves with MemberQ[{3 + 4*E^(2*Pi*I/3)}, 3 + 4*(-1)^(2/3)]. It will return ...
asked by Descartes Before the Horse https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69355 2 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228403
I have a few image urls that I want to download async, how can we monitor progress of URLDownload? Example:
Monitor[ URLDownload[ WebImageSearch["dog", ...
asked by M.R. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=403 1 vote