Built-In Mathematical Calculations
Math is a built-in object with properties and methods for mathematical constants and functions. It is not a function object. Math works with the Number type. Math functions are all static, so each starts with Math.myfunctioncallhere(). Math.PI and Math.random() are two Math functions used a lot when doing calculations.
Static methods
Math.abs()-
Returns the absolute value of
x. Math.acos()-
Returns the arccosine of
x. Math.acosh()-
Returns the hyperbolic arccosine of
x. Math.asin()-
Returns the arcsine of
x. Math.asinh()-
Returns the hyperbolic arcsine of a number.
Math.atan()-
Returns the arctangent of
x. Math.atan2()-
Returns the arctangent of the quotient of its arguments.
Math.atanh()-
Returns the hyperbolic arctangent of
x. Math.cbrt()-
Returns the cube root of
x. Math.ceil()-
Returns the smallest integer greater than or equal to
x. Math.clz32()-
Returns the number of leading zero bits of the 32-bit integer
x. Math.cos()-
Returns the cosine of
x. Math.cosh()-
Returns the hyperbolic cosine of
x. Math.exp()-
Returns ex, where x is the argument, and e is Euler's number (
2.718…, the base of the natural logarithm). Math.expm1()-
Returns subtracting
1fromexp(x). Math.floor()-
Returns the largest integer less than or equal to
x. Math.fround()-
Returns the nearest single precision float representation of
x. Math.hypot()-
Returns the square root of the sum of squares of its arguments.
Math.imul()-
Returns the result of the 32-bit integer multiplication of
xandy. Math.log()-
Returns the natural logarithm (㏒e; also, ㏑) of
x. Math.log10()-
Returns the base-10 logarithm of
x. Math.log1p()-
Returns the natural logarithm (㏒e; also ㏑) of
1 + xfor the numberx. Math.log2()-
Returns the base-2 logarithm of
x. Math.max()-
Returns the largest of zero or more numbers.
Math.min()-
Returns the smallest of zero or more numbers.
Math.pow()-
Returns base
xto the exponent powery(that is,xy). Math.random()-
Returns a pseudo-random number between
0and1. Math.round()-
Returns the value of the number
xrounded to the nearest integer. Math.sign()-
Returns the sign of the
x, indicating whetherxis positive, negative, or zero. Math.sin()-
Returns the sine of
x. Math.sinh()-
Returns the hyperbolic sine of
x. Math.sqrt()-
Returns the positive square root of
x. Math.tan()-
Returns the tangent of
x. Math.tanh()-
Returns the hyperbolic tangent of
x. Math.trunc()-
Returns the integer portion of
x, removing any fractional digits.