How to use? There are many ways:
First line of buttons are for algebra to return function, second line of button are for calculus to return function, third line of buttions are for discrete math with default index variable k to return value, forth line of buttions are for numeric compution to return number. 5th and 6th line of buttions are to plot2D graph. 7th and 8th lines of buttion are to plot3D graph.
The same color buttons are a pair of inverse operators, its result can be checked each other if it returns origial function or not.
It is an online graphic calculator and computer algebra system with learning. It can perform exact, numeric, symbolic and graphic computation, e.g. any order of derivative, fractional calculus, fractional differential equation, symbolic differentation and integration, indefinite sum, interactive plot. It is a programming language, e.g. add new fractional derivatives and integrals, conditional or recursive functions, procedures, and rules.
It can run on any mobile with Internet, and any computer with Java.
It is Computer Algebra System for symbolic computation of any order of fractional derivative. It has three versions:
SymbMath - PC DOS version of symbolic computation Computer Algebra System.