take the cotangent of a number in typescript

To find the cotangent of a number in TypeScript, you can use the Math library's trigonometric functions.

The cotangent of an angle x is equal to 1 divided by the tangent of x. Therefore, we can use the tangent function provided in the Math library and then take its reciprocal.

Here's an example function that takes an angle in radians and returns the cotangent:

index.ts
function cot(angle: number): number {
  return 1 / Math.tan(angle);
}
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Note that this function assumes that the angle passed as a parameter is in radians. If you have an angle in degrees, you will need to convert it to radians first.