Performing mathematical calculations and solving expressions or equations on computer was not at all possible and was used to be done on the paper with a pencil but with the help of this tool called Math-o-mir even this is possible.
Math-o-mir is like the mathematical notepad which can be used to solve maths problems even on the computer. Math-o-mir is a software tool designed to write and edit mathematical equations as easily as possible. The goal was to achieve the same level of simplicity as with pencil and sheet of paper.
In Math-o-mir you can touch expressions and expression elements and then, by mouse click, copy them around your mathematical document and insert them into other equations. You can also make simple hand-drawings to illustrate your equations.
This free tool is surely worth a try and is very simple to use.