"Math Input Panel is a great little application from Windows which lets you use input devices such as touchscreens, external digitizers or even a mouse, to write mathematical
formulas that are automatically recognized and can be inserted into different types of documents. The formulas you write in Math Input Panel are pasted into documents in a completely editable form so that you can work with the output as you would edit any
type of text. This can improve your productivity when creating documents or presentations with lots of mathematical formulas."