## Binary Tricks

These are some binary tricks that I collected on the web. Useful or not. Some of them are the reinventing-the-wheel product of mine. But it is nice to keep a record here. [more]

## LaTeX package: qbordermatrix

In plain TeX, there is a macro \bordermatrix but I am not very satisfied with it. The problem of that is, the “border” is always at the leftmost and topmost, but not any other combinations. For some unknown reason, I am surprised that no one has any problem with it... [more]