NAME¶

SYNOPSIS¶

double carg(double complex z);
float cargf(float complex z);
long double cargl(long double complex z);

Link with -lm.

DESCRIPTION¶

A complex number can be described by two real coordinates. One may use rectangular coordinates and gets

    z = x + I * y

where x = creal(z) and y = cimag(z).

Or one may use polar coordinates and gets

    z = r * cexp(I * a)

where r = cabs(z) is the "radius", the "modulus", the absolute value of z, and a = carg(z) is the "phase angle", the argument of z.

One has:

    tan(carg(z)) = cimag(z) / creal(z)

RETURN VALUE¶

VERSIONS¶

ATTRIBUTES¶

CONFORMING TO¶

SEE ALSO¶

COLOPHON¶