Hi, its been a while since i've dealt with complex numbers, so i'd like to see if anybody has some help for this problem.

say we have some complex number/expression denoted by A. (could be anything). The magnitude of A could be easily computed by

\(||A|| = sqrt(AA^*)\)

the problem is, i want to know how i can calculate the phase. eventually, i would like to write in the phasor form, so i would need to extract the phase somehow.

any simple solutions?

thanks

 

Say A=a+j*b

\(Mag(A)=\sqrt{a^{2}+b^{2}}\)

\(Phase(A)=arctan(\frac{b}{a})\)

 

On a modern calculator the "arctan" function is often represented as the inverse tangent or

\(tan^{-1}(b /a)\)