# All Questions

76 views

### How to make such a $N(0,1)$ sketch for standard normal Z?

My attempt: Plot[PDF[NormalDistribution[], x], {x, -4, 4} , AxesLabel -> {None, "Z"}]
35 views

### Module does not evaluate the same way as without [closed]

I have a module as follows: ...
287 views

### Create a function with Dt[x] as a variable

I have a function (for example F[x_]:=Cos[x]). I want to define a function like Fdot[x_,xdot_]:=Dt[F[x]] where xdot represents Dt[x]. For example, to define Fdot one might naivley try ...
96 views

### How can I draw a histogram from a nested list?

I have a nested list of the form list= {{1,1,1},{1,2,3},{1,1,1}} How can I plot a histogram that tells me how often each number pattern appears in my list? For ...
74 views

### Tracking solutions over a Brillouin zone

Thanks to @bbgodfrey I have a function that finds the two solutions to a set of equations bounded by a hexagonal region (corresponding to the Brillouin zone). It takes the angle ...
391 views

### How to read complicated result from Reduce?

How can I read this Reduce output from Mathematica that I got from solving an inequality? I do not perfectly know when one case in this case analysis is over and ...
150 views

### Bad rendering of rotated text in 3D graphics in notebooks

Why is my rotated text so badly rendered in 3D graphics in notebooks (the exported pdf are OK). It happens for me with v9 or v10.1.0 and OSX (10.9.5). Notice that the rendering is good in 2D ...
198 views

### How would I use Map on a Dataset column?

I am somewhat new to functional programming. To improve the performance of a package, I would like to re-write a package in a functional style. I have the following ...
89 views

### How to contour shade two specified contours?

I want to have contour shading between two contours specified by two equations like below, ...
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### How do I download and export data from many weather stations?

I tried this code, which downloads data from several weather stations. ...
75 views

### Factor out certain terms using Modulus but Mathematica requires that the modulus be an integer [closed]

Mathematica demands that the modulus be an integer. How do I work my way around this?
My attempt. I need to solve numerically the Complex Ginzburg-Laudau Equation (CGLE): $$\frac{\partial A}{\partial t}=\epsilon A-(1+i\beta)|A|^2A+(1+i\alpha)\nabla^2A$$ I'm using a uniform initial ...
I have this semi-complicated equation to which I want to find an analytical solution for $\epsilon$. The equation is a s following: a^2 (2 b k \epsilon \sqrt{1 - \epsilon^2/b^2} - 2 c k ...