complex
From cppreference.com
C
Numerics
Complex number arithmetic
| Types and the imaginary constant | |||||||||||||||||||||||||||||||
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| Manipulation | |||||||||||||||||||||||||||||||
| Power and exponential functions | |||||||||||||||||||||||||||||||
| Trigonometric functions | |||||||||||||||||||||||||||||||
| Hyperbolic functions | |||||||||||||||||||||||||||||||
| Defined in header <complex.h>
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| #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)
[edit] See also
| (C99) |
imaginary type macro (keyword macro) [edit] |
