Math.cos()
Math.cos(x) → number
Returns the cosine of x.
Returns the cosine of the angle x, given in radians. The result is in the range -1 to 1.
Arguments
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| x | number | optional | — | An angle in radians. |
Returns
number
The cosine of x.
Example
let c = Math.cos(Math.PI); // -1