- The matrix calculator can multiply, add and raise matrices to higher power.
- LU Decomposition tool (LR-Zerlegung [de]) of an NxN matrix.
of linear equations solving tool
- solves a system of linear equations of the form
Ax = b
- There was a little three-language math dictionary on this site which has moved to mathdict.chitanka.info. It includes all six ordered pairs between English, German and Bulgarian.
- Arabic-Roman numerals converter - converts arabic to roman numerals and vice versa