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The JavaScript FAQ
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### Math Functions

Question: What mathematical functions are supported in JavaScript?

Answer: JavaScript supports the following mathematical functions (methods of the `Math` object):

```Math.abs(a)     // the absolute value of a
Math.acos(a)    // arc cosine of a
Math.asin(a)    // arc sine of a
Math.atan(a)    // arc tangent of a
Math.atan2(a,b) // arc tangent of a/b
Math.ceil(a)    // integer closest to a and not less than a
Math.cos(a)     // cosine of a
Math.exp(a)     // exponent of a
Math.floor(a)   // integer closest to and not greater than a
Math.log(a)     // log of a base e
Math.max(a,b)   // the maximum of a and b
Math.min(a,b)   // the minimum of a and b
Math.pow(a,b)   // a to the power b
Math.random()   // pseudorandom number in the range 0 to 1
Math.round(a)   // integer closest to a
Math.sin(a)     // sine of a
Math.sqrt(a)    // square root of a
Math.tan(a)     // tangent of a
```
Note that trigonometric functions assume that the argument is in radians, not degrees!