Mathematics

Khan Academy

• Available for computer (website), tablet, mobile device
• Video tutorials in math, science, computer programming, history, art, and economics
• https://www.khanacademy.org/

Wolfram Alpha

• Available for computer (website), tablet, mobile device
• Computational knowledge engine
• https://www.wolframalpha.com/

RealCalc Scientific Calculator

• Available for mobile devices
• Approximate cost: Free
• A downloadable scientific calculator for your phone

MyScript Calculator

• Available for tablet, mobile devices
• Approximate cost: Free
• Converts handwritten text to digital typeface; easily edited; does calculations

MyScript MathPad

• Available for tablet, mobile devices
• Approximate cost: Free
• Converts handwritten text to digital typeface