I have been helping my daughter over the phone with first year physics and have run into a problem with communication(insert your favorite joke here). It is difficult to describe a diagram that has vector, angles, notations and also associated equations. I would like to be able to freehand sketch a drawing or write an equation that would appear real time on her computer screen or alternatively could be written on a digital sheet of paper that could be easily and quickly sent as an email attachment or in some other manner.(adsbygoogle = window.adsbygoogle || []).push({});

Has anyone here had this situation before and know of some relatively inexpensive solutions.

Any ideas would be greatly appreciated.

We both use Mac's.

I have looked at Wacom's Bamboo Pen as an input device but have not tried it yet.

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# Equations and sketches on a computer

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