If you find Lambda Calculator useful, please let me know! Especially do this if you use Lambda Calculator in a class you teach!
To send a comment, use the following address. Be sure to include a truly descriptive subject line; otherwise, I may not recognize the name and think that the message is junk mail.
Affirmative comments will help me get support to develop the program further, and helpful comments will point out what is most important for future versions. I value all e-mails received about Lambda Calculator, as I want it to become as useful an educational tool as possible.