Documentation is available in the DirectMath application. Just select "DirectMath Documentation" from the Help menu in DirectMath.
If you have lost or forgotten your user name or unlocking code, or if you are having problems with the DirectMath software, send an email to email@example.com. To retrieve a lost unlocking code, please send us the email address you used when you purchased the unlocking code.
Joe Gregg, the author of the DirectMath software, welcomes your comments and suggestions. Feel free to contact him any time at firstname.lastname@example.org.