Mathematica Questions, Problems & Solutions : TransWikia.com ~ Page 183

Speed of Nsolve

I'm trying to solve a set of equations.There is about 1000 variables and 1000 polynomials. Since this is a polynomial and the number of variables and equations are the...

Asked on 01/25/2021

0 answer

Histogram scale error when using DistributionChart

I'm a novice Mathematica user that is having some problems using the HistogramDensity function in a DistributionChart. My observations are heavily skewed to one category and the height of the...

Asked on 01/25/2021 by user13947

1 answer

Differentiate a numerically defined function

My function is f[a_, b_] := NIntegrate[Sqrt[(Cos[t] - a)^2 + b^2], {t, 0, Pi}]I want to calculate g[1,1] where g[a,b] is defined as...g[a_, b_] := Derivative [1, 0][f][a,...

Asked on 01/25/2021 by potatosoup

4 answer

WolframScript fails to activate

When I try to run wolframscript for the first time, here is what happens$ wolframscript The Wolfram Engine requires one-time activation on this computer.Visit https://wolfram.com/engine/free-license to get your free...

Asked on 01/25/2021 by Cydouzo

0 answer

Bug in DSolve when solving a system of two second order PDEs?

I'm solving a simple system of PDEs in Mathematica 11.1:DSolve[{D[f[x, y], x, y] == 0, D[g[x, y], x, y] == 0}, {f[x, y], g[x, y]}, {x, y}]This gives:{{f[x,...

Asked on 01/25/2021 by C. B.

1 answer

Show not displaying multiple ContourPlot3D's

I'm trying to make an image that looks like this: I'm not sure if this is the best way to...

Asked on 01/25/2021 by Charlie H.

1 answer

Pattern matching functions of variables

I am trying work with a general operator z[] and later plug in candidate forms for z[]. But pattern matching turns the inside z[] into a constant and can no...

Asked on 01/25/2021

1 answer