50k views

### Where can I find examples of good Mathematica programming practice?

I consider myself a pretty good Mathematica programmer, but I'm always looking out for ways to either improve my way of doing things in Mathematica, or to see if there's something nifty that I haven't ...
867 views

### Applying TextRecognize on alpha-numerical table

From time to time I have to extract data from scanned papers or rasterized PDFs. Imagine a table of the following kind (but much longer): A naive application of ...
684 views

### Is using undocumented functionality a Bad Idea™?

Mathematica has a lot of very useful undocumented features. For example a hash table, a built-in list of compilable functions, additional options to CurrentValue, ...
1k views

### when is f@g not the same as f[g]?

I have always thought that f@g will give the same result as f[g] in all cases, and it is just a matter of style which one to use ...
366 views

### How to write beveled fractions?

How to write beveled fractions like ${}^a/_b$? In contrast to $\frac{a}{b}$ and $a/b$ (see this question).
406 views

### “Unflattening” a list

Imagine we have a list with some hierarchical structure: list = {{{2,3},{2,4}},{{{3,4}}},{{5,6},{7,8}}}; Which we then flatten to some level in order to process ...
544 views

### How to keep Collect[] result in order?

For example, Collect[(1 + x + Cos[s] x^2)^3, x] gives the result ...
963 views

### Optimizing a Numerical Laplace Equation Solver

Laplace's Equation is an equation on a scalar in which, given the value of the scalar on the boundaries (the boundary conditions), one can determine the value of the scalar at any point in the region ...
438 views

### Changing the inter-item spacing in Legends (version 9)

The new legending functionality in version 9 is much easier to use than the PlotLegends package and other bespoke ways of creating legends in earlier versions. ...
250 views

### Two-sided slider getting stuck

I'm implementing a two-sided slider to be able to set upper and lower bound in just one slider: The problem is that it can get stuck when both locators are at the far left: And I'm unable to ...
144 views

The goal is to assemble a SparseArray in an additive fashion. Let us assume we have a large List of indices (some will be ...
155 views

### “Not a valid Filling specification” error

I have a function, which plots the given function array f. This is a part of the function: ...
215 views

### How to get a list of available appearance/styles?

This is a basic question but I haven't found any answer yet :/ Available appearances for Button[] are mentioned in Help, those ...