The Math object allows you to perform mathematical tasks on numbers.
The Math object allows you to perform mathematical tasks.
The Math object includes several mathematical methods.
One common use of the Math object is to create a random number:
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Math has no constructor. No methods have to create a Math object first. |
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Math.min() and Math.max() can be used to find the lowest or highest value in a list of arguments:
Math.random() returns a random number between 0 and 1:
Math.round() rounds a number to the nearest integer:
Math.ceil() rounds a number up to the nearest integer:
Math.floor() rounds a number down to the nearest integer:
Math.floor() and Math.random() can be used together to return a random number between 0 and 10:
JavaScript provides 8 mathematical constants that can be accessed with the Math object:
| Method | Description |
|---|---|
| abs(x) | Returns the absolute value of x |
| acos(x) | Returns the arccosine of x, in radians |
| asin(x) | Returns the arcsine of x, in radians |
| atan(x) | Returns the arctangent of x as a numeric value between -PI/2 and PI/2 radians |
| atan2(y,x) | Returns the arctangent of the quotient of its arguments |
| ceil(x) | Returns x, rounded upwards to the nearest integer |
| cos(x) | Returns the cosine of x (x is in radians) |
| exp(x) | Returns the value of Ex |
| floor(x) | Returns x, rounded downwards to the nearest integer |
| log(x) | Returns the natural logarithm (base E) of x |
| max(x,y,z,...,n) | Returns the number with the highest value |
| min(x,y,z,...,n) | Returns the number with the lowest value |
| pow(x,y) | Returns the value of x to the power of y |
| random() | Returns a random number between 0 and 1 |
| round(x) | Rounds x to the nearest integer |
| sin(x) | Returns the sine of x (x is in radians) |
| sqrt(x) | Returns the square root of x |
| tan(x) | Returns the tangent of an angle |
For a complete reference, go to our complete Math object reference.
The reference contains descriptions and examples of all Math properties and methods.
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