Wolfram Alpha – the Ultimate Calculator and Unit Conversion Engine
Before my TI graphing calculator died I used to use the 'Solver' function that allowed one to define variables then input knowns and solve for the unknown. Where do I find that
Wolfram Tides Calculator – edshelf
Wolfram Investment Calculator Reference App on the App Store
Solved Without using a calculator (or Wolfram Alpha), | Chegg.com
Present Value Calculator - Wolfram Demonstrations Project