Scientific functions with degree/radian control
Covers trigonometry, logarithms, powers, roots and factorials, with a Deg/Rad toggle above the keypad and an Indian number-grouping option. Calculations and memory are saved locally, and any number on the input line can be edited in place.
How to use
- Set Deg or Rad depending on what your trig calculation needs
- Enter the expression using the keypad
- Press = for the result, or use the function keys (sin, log, x², etc.) inline as you build the expression
Common questions
Is sin, cos and tan calculated in degrees or radians?
Degrees by default. Switch to the Rad option above the keypad if your calculation needs radians — the display updates immediately, but any result already on screen is not retroactively converted.
What's the difference between log and ln?
log is base 10 and ln is the natural logarithm, base e. Both buttons are separate on the keypad, so there's no mode to switch.
Can this take the factorial of a decimal number?
Yes — non-integer inputs go through a gamma-function approximation rather than the exact integer factorial. Whole numbers are exact up to 200!; above that the integer path returns an error rather than an inaccurate answer.