Calculator

Just type and your answer comes up live.
Use the buttons, or type formulas like 3*sqrt(2) or pi/2

numbers/images/decimal.js,images/calc.js

Also see Function Grapher, Equation Grapher, and Full Precision Calculator.

All Functions

Operators

Addition operator

Subtraction operator

Multiplication operator

Division operator

Exponent (Power) operator

()

Parentheses (brackets)

Functions

Make sure you have chosen radians or degrees with sin, cos, tan and so on.

sqrt

Square Root

sin

Sine

cos

Cosine

tan

Tangent

asin

Inverse sine (arcsine)

acos

Inverse cosine (arccos)

atan

Inverse tangent (arctangent)

sinh

Hyperbolic sine

cosh

Hyperbolic cosine

tanh

Hyperbolic tangent

The natural logarithm

log

The base-10 logarithm

abs

Absolute value (distance from zero)

sign

1 for positive, −1 for negative, and 0 for zero

round

round to nearest integer

floor

largest integer not greater than the input value

ceil

smallest integer not less than the input value

fact

factorial function

Constants

The constant π (3.14159265...)

Euler's number (2.71828...), the base for the natural logarithm

Note: for more digits of accuracy but less functions try the Full Precision Calculator.