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GRE Calculator is designed to help you with long calculations.

Trilithon Protractors is a Mac OS X app for web developers and graphic designers...

Teaches the concepts of decision trees for regular pattern recognition.

ASL Dictionary allows you to learn American sign language.

Time Out reminds you to take regular breaks when using a computer for hours to avoid bad habits and over-straining.

Prepare for the Adobe Certified Expert (ACE) product proficiency exam.

Windows

Windows Mac

Blue&White

Free

Variety of predefined instruments, scales and functions.