Forgot your calc? We got you.
A proper scientific calculator. Type with your keyboard or tap the keys; tap the answer to copy it.
DEG2NDM
Keyboard: digits and + − × ÷ ^ ( ) !, Enter = equals, Backspace, Esc clears, arrows move the cursor. Type function names too: sin(30), sqrt 16, 5 nCr 2, log2(8), root(27,3). % is modulo (remainder).
How it reads an expression
Standard precedence: brackets, then factorial, then powers (right to left, so 2^3^2 = 512), then nCr/nPr, then the minus sign (so −3² = −9, like a real calculator), then × ÷ and implied multiplication (2π, 2(3), 2sin30), then + −. Trig uses the DEG/RAD switch; the 2ND key turns sin into sin⁻¹, ln into eˣ, and so on. Nothing you type leaves this page.