export function sin(x: number): number {
  //      discuss at: https://locutus.io/python/sin/
  // parity verified: Python 3.12
  //     original by: Kevin van Zonneveld (https://kvz.io)
  //          note 1: Returns the sine of x, where x is in radians
  //       example 1: sin(0)
  //       returns 1: 0
  //       example 2: sin(1.5707963267948966)
  //       returns 2: 1
  //       example 3: sin(-1.5707963267948966)
  //       returns 3: -1

  return Math.sin(x)
}