# All Questions

58,666 questions
133 views

### How to get a peek at the source code for demonstrations if there is no source code provided [on hold]

NOTE: The prequel to my question has been answered before here In the case of the question linked above, the author's code was available. But I would like to know if it is possible to reveal the code ...
117 views

### Einstein summation convention for symbolic vector calculus

I am trying to do some vector calculus in Mathematica in index notation form because it gives a clear result that can be compared to pen and paper calculations. Since there is no built in Einstein ...
62 views

### Only display plot legends for curves that are visible in the plot range

I have a list of coefficients, i.e. coefficients = {{a1,a2},{b1,b2},...,{an,bn}} From this, I generate a list of functions. I then plot these functions with a ...
44 views

### Mathematica online: How to evaluate initialization cells (only)

I‘m sometimes (mainly on vacation) Mathematica online on an iPad. Up to now I could not find a way to evaluate the initialization cells (only) which is a menu command in Mathematica on my Mac. Does ...
29 views

### Suppressing the repeated evaluation of a sub-expression in a Manipulate expression

I'm trying to build CDF from a code that you can see on the image. However, it is painfully slow. The way to improve speed would be to reduce calculations. The same value is recalculated over and over ...
33 views

### Using TeXForm for subscripted variables

I tried following the answer in TeXForm and Symobilze, however, I have trouble making it work. I loaded the Notation packages and symbolized all expressions with a subscript as in the example. I ...
133 views

### Finding the location of a point in a given list

Say I have a list: ...
29 views

### Return multiple results from compiled function [duplicate]

I wrote a function with Compile that produces a large array of data and later does some computation on it. Now, I want to return from the compiled function not only ...
21 views

### Check Existence of context

When you accidentally load some packages that introduce contexts (like the notation package) twice you sometimes get errors involving shadowings etc. I would like to able to "protect" the loading of ...
72 views

### Making NDSolve choosing by itself a spatial meshing leading to correct integrated results

In a previous post, I was asking how to force a fine spatial meshing in NDSolve using the FiniteElement method. The solution was ...
14 views

### exporting graphics has missing features in pdf format in 11.0.1

I am creating graphics with the following code ...
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41 views

### Infix notation for VertexLabels in a Graph (reformulated from a closed topic)

I am reformulating this question as it was incomplete. I want to label vertices in a graph with expressions in infix notation. I copy my code below. First part converts a list of expressions to ...