Very loosely based on the popular TI-30Xa Scientific Calculator. But you never need to change the batteries. Remember, on these old-timey calculators, you have to press the function keys _after_ you enter the number. So, it's "90 sin". Not: "sin 90"
Some known bugs: 1. Rounding errors. (for example: 4^2 = 15.999999) 2. You can continue to do operations after an error, without pressing Clear. Planned features for the future: 1. Output format (SCI, FIX, ENG, fractions, decimal degrees) 2. Polar to Rectangular conversion 3. A more professional look. Other notes: 1. This calculator lets you use memory locations 0-9. The TI-30Xa only lets you use 1-3. 2. No limits on the number of pending operations.
