# All Questions

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### Summing Multinormal Distributions

So, I'll explain the problem first. I have two populations that have values for two different channels (c1,c2). I've modeled these using MultinormalDistribution[]. I would like to add some noise to ...
31 views

### Extract the real components from a very large expression

Suppose I have a very long expression (>500,000 characters) which contains a mixture of real and imaginary terms. e.g ...
31 views

### Where Statement

Is there a "parallel" way to perform these operations? Indices = {} For[i = 1, i <= Length[w], i++, If[w[[i]] < 0, AppendTo[Indices, i]]] Which gives a ...
20 views

### How to convert multidimensional matrix into regular matrix?

I have this multidimensional matrix: {{{{a1, a2}, {a3, a4}}, {{b1, b2}, {b3, b4}}}, {{{c1, c2}, {c3, c4}}, {{d1, d2}, {d3, d4}}}} I would like to convert it into ...
20 views

### Mathematica Notebook on Two Computers

This may have been asked already, but I am considering making a game in Mathematica that two people can play. However, the issue with my idea is that the other player can't view the cards of the first ...
28 views

### NMaximize evaluating function incorrectly

I'm attempting to maximize a complex function (most of which is irrelevant to the problem I believe, but I've been unable to find a simpler case that recapitulates the problem): ...
37 views

### My plot is cut off if a frametick is “0” but resized if a frametick is “0.” Why?

I have been trying to customize the frame ticks and frame label around a certain contour plot and am running into very strange behavior where the graphics will get cut off by ...
34 views

### Problem with presenting solutions for various parameter

After lot of difficulties I obtained function f[x] which should have real root just for one value x but I want to see other complex solutions in the plane for various real x. I have another ...
43 views

### Finding minimum fly-by radius between Mars and spacecraft from interpolating function

I've written an interplanetary trajectory solver/plotter that plots the path taken by a spacecraft on an Earth-Mars mission, but have run into a little trouble when the spacecraft actually reaches ...
27 views

### What kind of info can I get from this list? [on hold]

Firstly, I'm not sure if this is the right StackExchange webpage, I just posted this here because I made it in Mathematica and the end result should be in Mathematica. I have a list ...
43 views

### Decompose Expression into Segments

Say I have an expression test = 3 x1^2 - 2 x3^-3 and I would like to decompose the expression into {3 x1^2, -(2/x3^3)}, I can do ...
43 views

### Find all the values of θ in the interval 0≤θ≤360 [on hold]

Find all the values of θ in the interval 0≤θ≤360 for which Sin2θ=cos 36
43 views

### How to work with lists of functions

I have some lists of interpolated functions and I want to know if there is an easy way to operate with them. A simplified example: ...