PEEI 2.0.0.0

The program PEEI v.2.0.0.0 calculates a numerical solution of almost all the systems of partial differential equations who have number of equations equal or greater of the number of unknown functions.

See also: systems of partial differential equations, numerical solution

Chemspread PRO 3.3

Free Java Applet is a chemistry spreadsheet calculator - balances virtually any chemical equation and follows up with stoichiometry calculations as well as equillibruim calculations. Percentage mass, titrations, ideal and non-ideal gases. Knows the periodic table and computes molecular weight of all entries. Partial pressures and Van der Waal equation. Gravemetric analysis. Includes tutorial. Free demo at mathshowcase.com

See also: chemistry, spreadsheet, calculator, balance, equations, stoichiometry