complex
From cppreference.com
C
Concurrency support (C11)
Complex number arithmetic
Types and the imaginary constant
Manipulation
Power and exponential functions
Trigonometric functions
Hyperbolic functions
Defined in header
<complex.h>
#define complex _Complex
(since C99)
This macro expands to a type specifier used to identify complex types.
A program may undefine and perhaps then redefine the complex macro.
[edit] Example
Run this code
#include <complex.h> #include <math.h> #include <stdio.h> void print_complex(const char* note, complex z) { printf ("%s %f%+f*i\n", note, creal (z), cimag (z)); } int main(void) { double complex z = -1.0 + 2.0*I; print_complex("z =", z); print_complex("z\u00B2 =", z * z); double complex z2 = ccos (2.0 * carg (z)) + csin (2.0 * carg (z))*I; print_complex("z\u00B2 =", cabs (z) * cabs (z) * z2); }
Output:
z = -1.000000+2.000000*i z2 = -3.000000-4.000000*i z2 = -3.000000-4.000000*i
[edit] References
- C23 standard (ISO/IEC 9899:2024):
- 7.3.1/4 complex (p: TBD)
- C17 standard (ISO/IEC 9899:2018):
- 7.3.1/4 complex (p: 136)
- C11 standard (ISO/IEC 9899:2011):
- 7.3.1/4 complex (p: 188)
- C99 standard (ISO/IEC 9899:1999):
- 7.3.1/2 complex (p: 170)