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FreeMat
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Section: Mathematical Functions
Compute the phase angle in radians of a complex matrix. The general syntax for its use is
p = angle(c)
where c is an n-dimensional array of numerical type.
For a complex number x, its polar representation is given by
and we can compute
Here are some examples of the use of angle in the polar decomposition of a complex number.
--> x = 3+4*i
x =
3.0000 + 4.0000i
--> a = abs(x)
a =
5
--> t = angle(x)
t =
0.9273
--> a*exp(i*t)
ans =
3.0000 + 4.0000i
M version contributor: M.W. Vogel 01-30-06