equation+ app for iPhone and iPad

equation+ is your ultimate resource regarding any mathematical or number functions. Included in this app are numerous calculations, fomulas, proofs, theorems, plots, and hundreds of genres of mathematics, statistics, currency, etc.

Here is a list of a few of the functions:
Conversions »
Plotting »
Elementary Mathematics »
Algebra »
Calculus & Analysis »
Derivatives »
Geometry »
Number Theory »
Discrete Mathematics »
Applied Mathematics »
Logic & Set Theory »
Mathematical Functions »
Advanced Mathematics »
Mathematical Definitions »
Famous Math Problems »