Calculates the complex absolute value of a single precision complex value.
Include
<complex.h>
Prototype
float complex cabsf(float complex z);
Argument
z |
Return Value
Returns the complex absolute value (also known as the magnitude, modulus, or norm) of
z
.
Example
See the notes at the beginning of this chapter or section for
information on using printf()
or scanf()
(and other functions reading and writing the stdin
or
stdout
streams) in the example code.
#include <stdio.h>
#include <complex.h>
int main(void)
{
float complex x, y;
x = -2.0 + 1.0*I;
y = cabsf(x);
printf("The complex absolute value of %f + %fi is %f + %fi\n", crealf(x), cimagf(x), crealf(y), cimagf(y));
}
Example Output
The complex absolute value of -2.000000 + 1.000000i is 2.236068 + 0.000000i