https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227863
A functional square root of a function \(g\) is another function \(f\) such that \(g=f\circ f\). According to that article, there is a systematic approach to finding a functional square root that involves ...
asked by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 10 votes
answered by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 2 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227893
Bug introduced in 12.1 or earlier and persisting through 12.1.1 or later [CASE:4615361]
Note: A worse problem existed in 12.0 for inputs greater than 8 and of precisions less than 43.66; 12.1 fixed ...
asked by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 9 votes
answered by J. M.’s technical difficulties https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=50 6 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227846
Sometimes the simplest things are the most difficult, I need to make a presentation, and I thought to do it in Mathematica, I wanted to do a demonstration too, well...this is the Rutherford’s equation
asked by Chris Schwenke https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=65367 9 votes
answered by Bob Hanlon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9362 14 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227869
@JimBelk asked in Interpolating an Antiderivative how to find a numerical antiderivative. I
gave an answer that uses NDSolve with the default method for integrating \(y'=f(x,y)\). However for
...
asked by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 8 votes
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 9 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227990
This is the a list of set.
data = {{"A"}, {"J"}, {"Q"}, {"G", "H"}, {"I", "O"}, {"B", "C", "E", ...
asked by partida https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=15961 6 votes
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 10 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227996
If there are grammatical or terminological errors in the following description, please help correct:
In some problems, it is necessary to find out what minimum number of exchanges can change a list ...
asked by Ordinary users68 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=42417 5 votes
answered by Hausdorff https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=73380 5 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227837
How do I get rid of the mesh in this contour plot?
ContourPlot[x^2 + y^2, {x, -10, 10}, {y, -10, 10}, Contours -> {1.0, 4.0, 10.5}, ContourStyle -> None, ContourShading -> ...
asked by QuantumDot https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2048 5 votes
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 6 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=16881
Well, the title is self-explanatory. What sorts of snowfall can we generate using Mathematica? There are two options I suggest to consider:
1) Continuous GIF animations with smallest possible number ...
asked by faleichik https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=219 39 votes
answered by Simon Woods https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=862 53 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=19035
I asked Mathematica to compute the following
Solve[c (1-x)^2-x^(1/4) == 0, x] and it returned this: x = Root[#1^8 c^4 - 8 #1^7 c^4 + 28 #1^6 c^4 - 56 #1^5 c^4 + 70 #1^4 c^4 - 56 #1^3 c^4 + 28 ...
asked by ronanymous https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5730 37 votes
answered by Dr. belisarius https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=193 63 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=3069
Question
The Mathematica tutorial has a section ’Basic Matrix Operations’, describing operations like transpose, inverse and determinant. These operations all work on entire matrices. I am missing a ...
asked by sjdh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=515 179 votes
answered by Mr.Wizard https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=121 60 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=11819
In today’s news, scientists found a bright object on one of Curiosity’s photos (it’s near the bottom of the picture below). It’s a bit tricky to find - I actually spent quite some time staring at the ...
asked by Victor K. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1351 198 votes answered by Niki Estner https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=242 257 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=19859
I need to save data that Mathematica uses inside the Plot command. The format that I would like to have is:
x1 y1 x2 y2
i.e. basically, two columns, x and y (sorted, if possible) so that I ...
asked by molkee https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5097 29 votes
answered by Mr.Wizard https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=121 46 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=4444
I need to create a plot for export and inclusion in a report. Is there a better way to label curves than PlotLegends? From what I’ve read and my personal experience, PlotLegends is pretty bad.
Is ...
asked by Tianxiang Xiong https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1041 62 votes
answered by Artes https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=184 46 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=3561
In the plot below I would like to add two vertical lines at \(x = \frac {\pi }{15} \pm \frac {1}{20}\). How can I do that?
f[x_] := (x^2 z)/((x^2 - y^2)^2 + 4 q^2 x^2) /. {y -> /15, z -> 1, q -> ...
asked by sjdh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=515 56 votes
answered by Ajasja https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=745 76 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227756
It can be seen from the following relationship that matrix A and matrix B must be congruent matrices with each other:
A = {{1, 4, 4}, {5, 2, 2}, {3, 1, 3}}; B = EulerMatrix[{/4, 0, ...
asked by Ordinary users68 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=42417 3 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=228028
Is it possible to get an analytical solution to the following problem? If so, how? \[a w^{(1,0)}(x,t)+b w^{(0,1)}(x,t)=p(x)+g w(x,t)\]
asked by Scott G https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74062 1 vote
answered by Michael Seifert https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=27813 0 votes
https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=227812
Let's say we have GP[v],GM[v]: two noncommutative objects depending on the commutative variable v. << NC`; << NCAlgebra`; SetCommutative[v]; SetNonCommutative[GP, GM] NCCollect[ GM[v] ** ...
asked by Kawette https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=60529 1 vote