All Questions

It seems to me that FixedPoint is designed to work with a particular value, but what if we want it to operate on a vector instead? I start with an nxn matrix mat and the function: ...

If I, by mistake, write Mathematica assigns $y'(x)=y(x)/5$ and I don't know how to clear that from memory (I had to restart Mathematica). ...

After having assigned the usage message to f using ClearAll@f; f::usage=ToString@RandomInteger@{10^10,10^11}; the ...

Background Suppose I have begun a fresh kernel session, and I have defined the following function alone: F[x_, y_] := x + y; One expected use of ...

Suppose I have a nb file named as 240119.nb [date of today]. Now If tomorrow I open it and do something, then upon closing it, It should be renamed automatically as ...

Given a list of Booleans: exampleInput = {1, 1, 0, 1, 0, 0, 1, 0}; and given the string: ...

I am trying to understand how to sort by multiple columns in Mathematica. Here is a simple data set consisting of results of sports matches. Each element represents a game, and contains fields for ...

I' ve learned that the following examples can be used to decompose a factor in this way ...

Is there an easy way to get a persistence diagram of given planar points? For example the following points: ...

recently I need to calculate this: $a(n+1)=((a(n-2)+a(n-1)+a(n)) \bmod 10000)$ and get $a(20000000)$ (for example). I know RecurrenceTable,but ...

I tried to assign different colors for each ListLinePlot combined with Show, but none of the things I tried with ...

I tried to use the Solve function to find all solutions to $\sin x = \cos(2x)$ in the interval [0, 2π). I evaluated ...

When I evaluate a self-defined function ...

I have a square matrix, I need to extract all possible combinations of 4 × 4 submatrices, where $n > 4$. For example in the case of a 6 × 6 matrix, there are 15 4 × 4 submatrices. I need the list ...

I am given this problem. ...

I am plotting a variable evolution with the results calculated by NDSolve. It reduced from 1.0 to 0.9 in the first 0.0001 seconds, while I want to plot this variable from 0 to 800 seconds. However, ...

In a nutshell, how can I get this number: I'm having trouble because $KernelID isn't a function and the FullForm is this crazy thing: Motivation: After you call ...

I'm having a problem where the following animation jumps around despite having PlotRange set. I don't have this problem with ...

I have the following code which serves my purpose for a single matrix input. For one or two matrices, the operation can be done manually, but I have 65 matrices and ...

I want to plot the following NMinimize function: I used GGPlot = Plot[GG[DM], {DM, 0.02, 10}, PlotRange -> All] But I get nothing! My code is ...

I am trying to solve with NSolve Integrate[x Tan[x], {x, -1, 1}] and get the numeric value. ...

My Mathematica file is corrupted. The error says There was a syntax error on line 34457 in the file: xxx.nb. The error was:Spacer[{0., 0.}], Selectable -> False ...

I need to find a polynomial $P$ such that $P(1/x)$ behaves like given function $f(x)$ at zero (their difference vanishes), even if $f(x)$ has a pole at $0$ or unknown order. P.S. I need to find a ...

I have a Fokker-Planck PDE \begin{align} \frac{\partial p}{\partial L}(L,\eta) = \eta^2\frac{\partial^2 p}{\partial\eta^2}(L,\eta) +(1-2\eta)\frac{\partial p}{\partial\eta}(L,\eta)+\frac{2(\eta-1)}{\...

This works: ClearAll[f1]; f1[x_] /; NumericQ[x] := x; Plot[f1[x]^2, {x, 0, 5}] This does not: ...

Is there a fast method to get the coefficients of Taylor series expansion of function $f(x_1,x_2,...,x_d)$ with maximal summed partial derivative up to $n$, where $d,n$ can be relatively large (for ...

It is really embarrassing to ask such a question, but my mathematica 12 is not showing any outputs. In my notebook, I don't have any "input[n]=" or "output[n]=" tags, and there are only plain text. I ...

I would like to plot a contour diagram of a function: ContourPlot[1/Sin[q \[Phi]], {q, 30, 100}, {q*\[Phi], Pi/300, Pi/200}] such that in the x-axis is plotted q,...

I'm looking for an efficient way to define and set toolbars/docked cells for paclets. I know about TextResources folder, but it seems that one needs to put there definitions in terms of box ...

I am trying to find the maximum (and minimum) value of an interpolated function constrained to an ImplictRegion with a (partly) curved boundary. I have followed the documentation carefully and tried ...

f[n_] := ( While[n < 10, n = n + 1]; n ) I am trying to learn mathematica on my own. I am trying to write a function that contains a while loop, but I ...

here is my question. I have a range of parameters spanning in a given range, a={1,50},b={100,200} and c={300,500}. For every set of parameters I have an indexed vector like this (for a given set): <...

Consider $X$ to be a random variate with defined expectation $\mu$ and finite variance $\sigma^2$ . Consider a ton of points $X_1,X_2,..X_n$ generated via some process. The points need not be all ...

I want to create a density plot in mathemtica and I want to use "Plasma" colormap which is given here (like Yellow corresponds to 0 and Purple corresponds to 1) https://image.slidesharecdn.com/...

I have a set of data which I give here ...

I see this function definition in the file(galois.m), but I don't know how it works. ...

This question is related to a previous question Create a slider to illustrate Fubini theorem. Thank to the help of @kglr, now I can create sliders to control the slice. ...

When doing a classification one can determine the ClassifierMeasurements to get Information about the classifier. I now wanted to get a histogram of the computed probabilities for a classifier. Maybe ...

I am using this ContourPlot ...

When I write: Plot[E^x-3x, {x, -10, 10}] I have this as an output: However, the graph should look like this: Why is there this discrepancy?

I know DelaunayMesh can triangulate the specified area, but I can't see the code and partition idea of this built-in function. I want to know how to get the source ...

I'm having issues with WordCloud giving me the error Not enough memory available to compute the word cloud. This happens even on ...

I have the following parameters, equations, and NDSolve solution set up as such: ...

The documentation shows how Mathematica can attach behavior to words in WordClouds, but I couldn't find anything on retrieving the list of bounding box coordinates. Is it available to the user? __ I'...

I would like to illustrate the Fubini theorem in Calculus like the following picture (taken from this page): This is what I tried: ...

Multidimensional Principal Value Computation Hi all, I've been trying to work out a type of integral for... months? Years? I've scoured the documentation here, and tried several of the tips in other ...

I knew that in Mathematica, the "Max" function yields the largest element of any of the lists, for example, Max[x,y,z,....]. How do I implement this function with Mathematica? and what does this ...

I am trying to find a way to have an item in a grid cell that always fill the available vertical space enforced by the remaining items (without enforcing any row height itself). One of my (many) ...

I have to do some calculations on modified gravity in xAct. The question is how to construct tensors, made of other tensors with contraction in particular chart. Without chart it can be done with <...

I was reading this article about the SpaceX launch and wanted to recreate the smooth map zoom: First of all, it doesn't know where the Kennedy Space Center is (what to do when that happens?): Using ...