- `Y = acot (X)`

Compute the inverse cotangent in radians for each element of `X`.

This is defined as

> > `%acot(z) = atan(1/z)%`

See also: `cot`, `acotd`.

### References

- https://www.mathworks.com/help/matlab/ref/acot.html
- https://octave.sourceforge.io/octave/function/acot.html
- https://mathworld.wolfram.com/InverseTrigonometricFunctions.html
- https://en.wikipedia.org/wiki/Inverse_trigonometric_functions