Name
csqrt
Synopsis
Calculates the square root of a complex number
#include <complex.h> double complexcsqrt
( double complexz
); float complexcsqrtf
( float complexz
); long double complexcsqrtl
( long double complexz
);
The csqrt()
function
returns the complex square root of its complex number
argument.
Example
double complex z = 1.35 − 2.46 * I;
double complex c, d;
c =csqrt
( z );
d = c * c;
printf("If the square root of %.2f %+.2f \xD7 I equals %.2f %+.2f \xD7 I,"
"\n", creal(z), cimag(z), creal(c), cimag(c) );
printf("then %.2f %+.2f \xD7 I squared should equal %.2f %+.2f \xD7 I.\n",
creal(c), cimag(c), creal(d), cimag(d) );
This code produces the following output:
If the square root of 1.35 -2.46 × I equals 1.44 -0.85 × I, then 1.44 -0.85 × I squared should equal 1.35 -2.46 × I.
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