This program calculates and plots Riemann sum approximations for the area under a curve. (RRAM, LRAM, MRAM, and TRAM). It allows customization of many features and has an easy-to-use interface. For more detailed instructions and theory about this program, see this post.

• Calculates and plots Riemann rectangular approximations (RAMs) for virtually any function
• Capable of RRAM, LRAM, MRAM, and TRAM
• Numerous input customization options

This basic program calculates the roots of a quadratic equation. It is optimized for size to take as little memory as possible. See this blog post for more information on this program

• Calculates the roots of a second degree polynomial
• Works for polynomials with imaginary roots
• Small file size

This basic program calculates the roots of a quadratic equation on a TI-89, TI-92, or Voyage 200. It is optimized for size to take as little memory as possible. See this blog post for more information on this program and how to program it yourself.

• Calculates the roots of a second degree polynomial
• Works for polynomials with imaginary roots
• Small file size

This basic program calculates the mode (most common value) of a list. See this blog post for more information on this program

• Simple input and output
• Useful for standardized tests
• Optimized to take as little memory as possible

This basic program calculates the mode (most common value) of a list. See this blog post for more information on this program

• Displays size of list and mode frequency in addition to value
• Simple input: type mode(listname)
• Useful for standardized tests

This simple program calculates the effective annual rate (EAR) for compound interest. To learn more about EAR, visit our blog post.

• Does not need FINANCE app to run
• Warns user if rate is greater than 1/100%
• Small file size