How to use the scientific calculator
This calculator combines basic arithmetic (+, −, ×, ÷) with scientific functions: trigonometry (sin, cos, tan), logarithms (log, ln), powers, roots, factorial, plus memory and calculation history.
Key features
- Trigonometry — sin, cos, tan and inverse functions (via the "Inv" button), degrees/radians toggle.
- Powers and roots — x², xʸ, √, 1/x.
- Logarithms — log (base 10) and ln (natural).
- Factorial — n! for non-negative integers.
- Memory — MC, MR, M+, M−, MS to store intermediate results.
- History — all previous calculations; click an entry to reuse the result.
Keyboard input is supported: digits, +, −, *, /, parentheses, Enter (=), Backspace, Escape (reset).
FAQ
How do I switch between degrees and radians?
Use the DEG/RAD toggle above the display. It affects sin, cos, tan and their inverse functions.
What does the "Inv" button do?
It switches sin/cos/tan to their inverse functions — arcsin, arccos, arctan.
How does memory work?
MS stores the current result, MR recalls it, M+/M− add or subtract from memory, MC clears it.
Can I use the keyboard?
Yes — digits, basic operators, parentheses, Enter for "=", Backspace to delete, Escape to fully reset.