The identity matrix is the matrix for which a_ij = 1 when i = j, and 0 everywhere else. For example, in three dimensions, I = [1 0 0 ; 0 1 0 ; 0 0 1]. x \mapsto y 1 + 1 = 2 2 + 2 = 4 4 + 4 = 8
and turns it into a latex document (or, straight to a .ps, at your
option). You can mix in real latex in the same text file,
too. Hopefully,
this'll allow us to write math in a
quick & readable way, and let the computer handle all the $s and the
"\left[ \begin{array}[lll] a & b & c\\
"s, etc.
If you're interested, check it out at http://easylatex.sf.net . Lemme know what you think, & what can be improved. -- BayleShanks