Trig, logs, powers, roots, factorial, π and e — with correct order of operations, a DEG/RAD toggle, and a tap-to-reuse history.
🧮 Runs entirely in your browser. History stays on your device.
sin/cos/tan and inverses with a proper DEG/RAD toggle — sin(30) = 0.5 in degrees, like your class expects.
Paste or type whole expressions — 2^10/(3+1) — and press Enter. No hunting for buttons.
Every calculation is kept in the side panel — tap one to load it back, perfect for iterating on a formula.
sin, cos, tan, asin, acos, atan, ln (natural log), log (base 10), sqrt, powers (^), factorial (!), the constants π and e, percent, and ANS for the previous answer.
Exponentiation is right-associative: 2^(3^2) = 2^9 = 512. That matches math convention and real calculators.
Standard 64-bit floating point (about 15–16 significant digits), with rounding cleanup so 0.1 + 0.2 displays as 0.3.