Math Dynamics, the Online Arithmetic Machine. It's a platform for managing math intensive information. From simple unit conversions to advanced algebraic and trigonometric analysis. Math Dynamics allows the User to craft custom Function Definitions from many discipline's such as Statistics, Marketing, Engineering, etc... An excellent multivariable multivariate algebra algebraic expression based graphing calculator. Use it for Algebra, Trigonometry, Calculus, Physics and any other discipline