Reference

Math and Science

Digital Signal Processing

• DSP tutorial links
• Online book on DSP

Symbols

• SI prefixes
• Greek

Properties and Constants

• > Fundamental Constants, Units, Conversion Factors, etc. (with electrical fundamentals)

Calculators and Tutorials

• List of online calculators
• > Scientific Calculator
• Matrix multiplier +
• Purplemath, somewhat elementary tutorials

Electrical circuits

• Retired professor's teaching aids on Electronics, Digital, and Microprocessor Technologies
• Transistor cheat sheet
• > Visual circuit simulator