Javascript provides a complete set of Math-Functions throuth the builtin Math-object. The properties and functions are used like this:

let A = Math.sin(45.0/Math.PI)

Did you ever wonder if there is an easier way to use Math-functions? This is an easy trick to simplify the usage through destructuring:

const { trunc, floor, abs, log10, min, max, sin, PI } = Math

let A = sin(45.0/PI)