The following functions are available for working with complex
numbers. Each expects a single argument. Given a matrix they work on
an element by element basis. In the descriptions of the following
z is the complex number x + iy, where i is
Compute the magnitude of z, defined as |z| =
sqrt (x^2 + y^2).
For example,abs (3 + 4i) => 5
Compute the argument of z, defined as theta =
). in radians.
For example,arg (3 + 4i) => 0.92730