Download Math-o-mir, to write mathematical equations
Math-o-mir is a free mathematical notepad. The idea behind Math-o-mir was: “why can’t I use my PC as simple as I am using pencil and paper when writing mathematical equations?”.
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.