How to use this scientific calculator
- Keyboard: type numbers and + − * / ^ ( ), press Enter for = and Backspace to delete. Esc clears.
- DEG / RAD: tap the mode button to switch the angle unit for sin, cos and tan.
- log is base-10, ln is the natural logarithm (base e).
- EXP enters powers of ten: 3E5 means 3 × 10⁵.
- Ans reuses your last result. Click any line in the history to reuse it.
Order of operations
The calculator follows standard maths rules (BODMAS / PEMDAS): brackets first, then powers, then multiplication and division, then addition and subtraction. Write 2 × (3 + 4), not 2 × 3 + 4, when you want the addition done first.