JavaScript Math Object
Math Object
The Math object allows you to perform mathematical tasks.
Math is not a constructor. All properties/methods of Math can be called by using Math as an object, without creating it.
Syntax
var x = Math.PI; // Returns PI
var y = Math.sqrt(16); // Returns the square root of 16 |
For a tutorial about the Math object, read our JavaScript Math Object tutorial.
Math Object Properties
| Property |
Description |
| E |
Returns Euler's number (approx. 2.718) |
| LN2 |
Returns the natural logarithm of 2 (approx. 0.693) |
| LN10 |
Returns the natural logarithm of 10 (approx. 2.302) |
| LOG2E |
Returns the base-2 logarithm of E (approx. 1.442) |
| LOG10E |
Returns the base-10 logarithm of E (approx. 0.434) |
| PI |
Returns PI (approx. 3.14159) |
| SQRT1_2 |
Returns the square root of 1/2 (approx. 0.707) |
| SQRT2 |
Returns the square root of 2 (approx. 1.414) |
Math Object Methods
| 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 |
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