# All Questions

0answers
6 views

### How to find line error in init.m file?

I have been changing my init.m user file. It runs fine, but I do get this error below. What does it mean by line 55? What constitutes a line? Are lines separated by "," or ";" or both? Or is it ...
0answers
13 views

### How to check and reset the boolean value of many options one times?

I defined a function which owns many options. In addtion, these options have a common characteristic. Namely, only accepting boolean value True or ...
3answers
29 views

### how to plot 3d graph for x^2 - y^2 = 1?

How to plot 3 dimensional graph for x^2 - y^2 = 1? I am already using it and I only can plot in 2 dimensional graph. Can someone help me with this problem?
0answers
20 views

1answer
47 views

### Improving strategy to solve this constrained root-finding problem

I am looking for roots of the function eqs defined below. It has $2k$ unknowns and returns a vector of $2k-1$ components. The sole purpose of the following block ...
0answers
19 views

### Tips on finessing Reduce[] with inequalities

Reduce[] sometimes solves inequalities I give it, sometimes it doesn't. Is there some general principles I'm missing or some common pitfalls I'm falling into? For example, here is easy problem I ...
0answers
48 views

### distribution for a random variable [on hold]

In a lab with $2 n$ PCs, half of which operate with IP v4 and half with IP v6. A professor is interested in having all PCs with the same protocol open, so at first he starts opening each pc one by ...
1answer
43 views

### Displacement around the x axis, how to change a function location

While plotting a function I want to change the location of x. I am doing a regression with the logistic function ...
1answer
96 views

### Plotting singular integral

I need to plot the following singular double integration where $x>0$, $t=m=0.2$, and $f(y)= \exp(-(y-4.68)^2/0.4)$. Due to singularities, I cannot plot $u(x,t)$ for $x=0..15$. I checked the ...
0answers
35 views

### Plot3D PlotStyle V10.3 vs V7 [duplicate]

This is the from the the very good book of Hazrat He used Mathematica 7.0. In Mathematica 10.3 one gets ...
1answer
50 views

### Rotate the output of Plot3D [on hold]

f[x_, y_] := Sin[x^2 + y^2] Exp[-x^2] + Cos[x^2 + y^2] g2 = Plot3D[f[x, y], {x, -2, 2}, {y, -2, 2}, PlotPoints -> 50, Axes -> False, Boxed -> False] ...
0answers
24 views

### Solve involving simple cancellation on both sides fails when there are too many constants

I've been working with a number of equations of the form x = A * B * x ^ C where I need to solve for x--basically, equations ...
0answers
47 views

### Bifurcation Diagram of Chua Circuit

I am currently working on a Bifurcation Diagram for Chua's Circuit but I am having trouble coming up with code for a bifurcation of a system of equations. The following equations are given in the ...

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