Visi M(x) is an application that allows you to solve mathematical expressions that involve arimetic operations, functions, matrices and variables. The equation editor is easy to use and contains many of the most common operations. The application, in addition to calculating the result, allows you to observe how the calculations are made step by step. You can copy the equations and their results to common word processors that MathML supports (like Microsoft Word and Open Office). Finally, the application allows you to obtain the MathML code and generate HTML pages very easily.