ccbrt.c File Reference

#include "prim.h"
#include "math.h"
#include "complex.h"

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Functions
complex	ccbrt (complex z)
	Cube root of complex number. More...

Function Documentation

complex ccbrt

(

complex

z

)

Cube root of complex number.

cbrt z = exp(1/3 * log(z))

More info is available at Wikipedia:
http://en.wikipedia.org/wiki/Cube_root

Definition at line 40 of file ccbrt.c.

References cexp(), clog(), cmul(), and cpack().

Referenced by ComplexNumber::CubeRoot().

{
    complex onethird = cpack(1.0 / 3.0, 0.0);
    complex a = cmul(onethird, clog(z));
    complex w = cexp(a);
    return w;
}

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