JavaScript Math Object

Math is a built-in object that has properties and methods for mathematical constants and functions. It is not a function object.

Math object

The Math object allows you to perform mathematical tasks on numbers.

Unlike other global objects, Math is not a constructor.

All properties and methods of Math are static and can be called as an object without creating it.

For example, call the constant piMath.PI, call the sine functionMath.sin(x), where x is the parameter of the method.

Example

var x = Math.PI;　　//　Return PI
var y = Math.sqrt(25);//　Return25square root

You can test on ourIn the JavaScript Math tutorialTo learn more about Math.

The following table lists the properties of the Math object:

Properties	Description
E	Return Euler's number, the base e of the natural logarithm, approximately2.718
LN2	Return2natural logarithm, approximately 0.693
LN10	Return the natural logarithm10, about2.302
LOG2E	Return e to the power of2logarithm to the base e, approximately1.442
LOG10E	Return e to the power of10logarithm to the base e, approximately 0.434
PI	Return PI, approximately3.14
SQRT1_2	Return1/2square root, approximately 0.707
SQRT2	Return2The square root, approximately1.414

The following table lists the methods of the Math object:

Method	Description
abs(x)	Return the absolute value of x
acos(x)	Return the arccosine of x, in radians
acosh(x)	Return the hyperbolic arccosine value of x
asin(x)	Return the radians of x
asinh(x)	Return the hyperbolic arcsine value of x
atan(x)	Return the arctangent value of x as-PI / 2and PI / 2the numerical value between
atan2(y, x)	Return the arctangent value of the quotient of its parameters
atanh(x)	Return the hyperbolic arctangent of x
cbrt(x)	Return the cube root of x
ceil(x)	Return the smallest integer greater than or equal to x
cos(x)	Return the cosine of x (x is represented in radians)
cosh(x)	Return the hyperbolic cosine value of x
exp(x)	Return E ^xvalue
floor(x)	Return the largest integer less than or equal to x
log(x)	log(x)
Returns the natural logarithm of x (base E)1, n2, n3, ..., nX)	max(n
Returns the largest number1, n2, n3, ..., nX)	Returns the smallest number
pow(x, y)	Returns x to the power of y
random()	Returns a random number between 0 to1to a random number between
round(x)	Rounds x to the nearest integer
sin(x)	Returns the sine of x (x is represented in radians)
sinh(x)	Returns the hyperbolic sine value of x
sqrt(x)	Returns the square root of x
tan(x)	Returns the tangent of the angle
tanh(x)	Returns the hyperbolic tangent of the number
trunc(x)	Returns the integer part of the number (x)

Note:Trigonometric Functions (sin(), cos(), tan(), asin(), acos(), atan(), atan2()) to represent the expected angle or return angle in radians.

To convert radians to degrees, divide by (Math.PI / 180), then multiply this value to perform another conversion.