# All Questions

2answers
296 views

### Importing numerical data from RTF file

This might be a very simple question but I have been struggling with it for a couple of hours, so thought maybe someone here can show me a quick way of solving it. I have a file in rtf format (...
1answer
290 views

### How could I improve this Central Limit Theorem demonstration speed- and content-wise?

My purpose is to demonstrate the Central Limit theorem by assuming two custom distributions, taking some random samples, calculating their means and ploting the results. Ideally, the histograms should ...
2answers
354 views

### How to make the computer consider two numbers equal up to a certain precision

My problem is that I have a matrix A and the computer says is not Hermitian (self-adjoint). Then I check which elements make A ...
2answers
753 views

2answers
109 views

### Cell copy results in jaggy, aliased output

When I copy a cells by selecting them from the collapse bars on the right, then using the context menu option "Copy", the pasted image of plots is not anti-aliased and in general the text seems to ...
3answers
605 views

### Animation is jerky, but slider is not

When I do the following simple animation (from the book Mathematica Navigator, p. 316) the slider control changes the image smoothly, but when I play the animation it is jerky. Is there anything that ...
1answer
121 views

### Frontend coloring of Table[x, {x, 0, x}]

I have a small question about how the Mathematica frontend colours in the variables that appear in (wrongly written) iterators. More specifically, I'm intrigued by the colour of the third ...
2answers
83 views

### Optimize recurrence output

I have recurrence and I need to calculate first $N$ members of the sequence ...
1answer
439 views

### Symbolic linear algebra

I would like to know how I can ask Mathematica to expand (and simplify) such an expression : $$(\alpha A + \beta B)^\top (\alpha A + \beta B)$$ where $\alpha,\beta$ are two real numbers and $A,B$ ...
3answers
309 views

I don't want to necessarily put my packages in Mathematica's $UserBaseDirectory, which is on my local hard drive. Can I somehow tell Mathematica to look for ... 1answer 104 views ### Evaluating an ItoProcesss function The following is my Stochastic D.E.: ... 0answers 114 views ### Error message from V6.0.3 on Mavericks With Mavericks, everything works fine except saving documents -- then I get this error: Internal self test error MacDialog | c | 2 Fixes? Ideas? Any help appreciated. 1answer 267 views ### How to create a SparseArray satisfying multiple conditions on Parts and Elements of a Matrix? I have a matrix m1 of size$3 \times 19$. Rows$1$,$2$and$3$represent$3$different groups, and columns represent$4$different blocks: block1 - columns$1$, ... 1answer 274 views ### Mathematica won't simplify multiplication by zero I'm getting a huge output, but it appears that almost every term should actually be zero, unless I'm misunderstanding the expression. For example, part of the output reads ... 2answers 152 views ### how to load packages on local computer when using remote kernels I usually works remotely using kernels on our hpc and front-end on my local laptop. This enable me do relatively large computation within my laptop(IP address of my laptop may change frequently). But ... 1answer 199 views ### Forcing optimal solution for FindShortestTour I use FindShortestTour as explained here and it works nicely for a small number of cities. However when I try this with as little as 16 cities, the given tour isn't ... 2answers 135 views ### Mathematica regex equvalent of \l In normal RegEx \l will make the character to the right lowercase. However, it seems like the RegEx in Mathematica does not have this functionality. For example <... 9answers 1k views ### How to partition a list of numbers in two lists of numbers such that each lists elements sums up to the same number? I have the following list of squares. {1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256} Their sum is$1496\$, I want to make two partitions ...

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