Gratis · Istruzione e scienze
Calcolatrice scientifica.
Calcolatrice scientifica online: trigonometria in gradi o radianti, logaritmi, potenze, radici, fattoriali, nCr, memoria e cronologia.
Type with the keyboard or the keys. Supports implicit multiplication (2π, 3(4+1)), powers (2^10), factorial (5!), percent (20%), nCr(10,3), log(x, base), root(x, n) and mod(a, b). Enter calculates, Esc clears.
Come usare questo strumento: Calcolatrice scientifica
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Note tecniche in inglese
Double-precision arithmetic shown to 15 significant digits. Factorials of whole numbers up to 170. No complex numbers, units or graphing. History is kept only in this browser. Everything is calculated in your browser; nothing you type is uploaded.
Expressions are parsed by a small recursive-descent parser (no eval): powers are right-associative, −2^2 is −4, implicit multiplication such as 2π and 3(4+1) works, and % divides by 100. Trigonometric results within 1e-14 of zero are shown as exactly zero.
In degree mode, 2sin(30) + 5! gives 121, and 0.1 + 0.2 shows 0.3 instead of floating-point noise.