PHASE function
Description
PHASE(A) returns the phase angle (or angular component) of the complex number A, expressed in radians. This is Excel's IMARGUMENT function.
The argument A can be a real number, a complex number or a matrix. When it is a matrix, the function returns a matrix with the same dimensions and with the PHASE function applied to all elements.
$$ phase(a+bi) = asin\left(b / abs(a+bi) \right) $$
Visual representation
Example
PHASE(2+3i) returns 0.982793723
PHASE(pi()*1i) returns 1.570796327
PHASE(3) returns 0.
Calculator
See also
Recommended book
Complex Numbers from A to ... Z
Titu Andreescu
Buy from Amazon
Learn how complex numbers may be used to solve algebraic equations, as well as their geometric interpretation Theoretical aspects are augmented with rich exercises and problems at various levels of difficulty