Feel free to email me about any questions you might have about Mathpad or MathpadDraw. In particular, I will try to answer any question you might have about how to format a complicated expression in Mathpad. Either I'll give you an answer or admit Mathpad can't handle this. I hope the help file in MathpadDraw will answer any questions you have about how to draw something, but feel free to email me about any question you have.
As with all programs, both Mathpad and MathpadDraw have bugs. I strongly encourage you to submit such bugs. As inducement, if you are the first to submit a particular bug, I will mail you free of charge the standard program. If you've already purchased the program, I will mail you the purchase price. I am the sole arbiter of what constitutes a bug, versus an undesirable feature. Also I must be able to reproduce the bug. Happy bug hunting.
I am a long time math and computer science teacher, located in Athens, Ohio (USA). When I'm not teaching or working on software, you can find me at the local golf course. Compared to golf, writing software is really a breeze. But there are similarities; once you get hooked, you just want to keep doing it. I hope you enjoy Mathpad and MathpadDraw as much as I enjoyed writing them.
John Gillam