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Standard library header <complex.h> (C99)

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This header is part of the complex number arithmetic library.

imaginary type macro
(keyword macro) [edit]
(C99)
complex type macro
(keyword macro) [edit]
The imaginary constant
the imaginary unit constant i
(macro constant) [edit]
the complex unit constant i
(macro constant) [edit]
(C99)
the complex or imaginary unit constant i
(macro constant) [edit]
Manipulation
(C11)(C11)(C11)
constructs a complex number from real and imaginary parts
(function macro) [edit]
(C99)(C99)(C99)
computes the real part of a complex number
(function) [edit]
(C99)(C99)(C99)
computes the imaginary part a complex number
(function) [edit]
(C99)(C99)(C99)
computes the magnitude of a complex number
(function) [edit]
(C99)(C99)(C99)
computes the phase angle of a complex number
(function) [edit]
(C99)(C99)(C99)
computes the complex conjugate
(function) [edit]
(C99)(C99)(C99)
computes the projection on Riemann sphere
(function) [edit]
Exponential functions
(C99)(C99)(C99)
computes the complex base-e exponential
(function) [edit]
(C99)(C99)(C99)
computes the complex natural logarithm
(function) [edit]
Power functions
(C99)(C99)(C99)
computes the complex power function
(function) [edit]
(C99)(C99)(C99)
computes the complex square root
(function) [edit]
Trigonometric functions
(C99)(C99)(C99)
computes the complex sine
(function) [edit]
(C99)(C99)(C99)
computes the complex cosine
(function) [edit]
(C99)(C99)(C99)
computes the complex tangent
(function) [edit]
(C99)(C99)(C99)
computes the complex arc sine
(function) [edit]
(C99)(C99)(C99)
computes the complex arc cosine
(function) [edit]
(C99)(C99)(C99)
computes the complex arc tangent
(function) [edit]
Hyperbolic functions
(C99)(C99)(C99)
computes the complex hyperbolic sine
(function) [edit]
(C99)(C99)(C99)
computes the complex hyperbolic cosine
(function) [edit]
(C99)(C99)(C99)
computes the complex hyperbolic tangent
(function) [edit]
(C99)(C99)(C99)
computes the complex arc hyperbolic sine
(function) [edit]
(C99)(C99)(C99)
computes the complex arc hyperbolic cosine
(function) [edit]
(C99)(C99)(C99)
computes the complex arc hyperbolic tangent
(function) [edit]

[edit] Synopsis

#define __STDC_VERSION_COMPLEX_H__ 202311L
 
#define complex _Complex
#define imaginary /* implementation-defined */
#define _Imaginary_I /* implementation-defined */
#define _Complex_I /* implementation-defined */
#define I _Complex_I
 
#pragma STDC CX_LIMITED_RANGE /*on-off-switch*/
 
double complex cacos (double complex z);
float complex cacosf (float complex z);
long double complex cacosl (long double complex z);
double complex casin (double complex z);
float complex casinf (float complex z);
long double complex casinl (long double complex z);
double complex catan (double complex z);
float complex catanf (float complex z);
long double complex catanl (long double complex z);
double complex ccos (double complex z);
float complex ccosf (float complex z);
long double complex ccosl (long double complex z);
double complex csin (double complex z);
float complex csinf (float complex z);
long double complex csinl (long double complex z);
double complex ctan (double complex z);
float complex ctanf (float complex z);
long double complex ctanl (long double complex z);
double complex cacosh (double complex z);
float complex cacoshf (float complex z);
long double complex cacoshl (long double complex z);
double complex casinh (double complex z);
float complex casinhf (float complex z);
long double complex casinhl (long double complex z);
double complex catanh (double complex z);
float complex catanhf (float complex z);
long double complex catanhl (long double complex z);
double complex ccosh (double complex z);
float complex ccoshf (float complex z);
long double complex ccoshl (long double complex z);
double complex csinh (double complex z);
float complex csinhf (float complex z);
long double complex csinhl (long double complex z);
double complex ctanh (double complex z);
float complex ctanhf (float complex z);
long double complex ctanhl (long double complex z);
double complex cexp (double complex z);
float complex cexpf (float complex z);
long double complex cexpl (long double complex z);
double complex clog (double complex z);
float complex clogf (float complex z);
long double complex clogl (long double complex z);
double cabs (double complex z);
float cabsf (float complex z);
long double cabsl (long double complex z);
double complex cpow (double complex x, double complex y);
float complex cpowf (float complex x, float complex y);
long double complex cpowl (long double complex x, long double complex y);
double complex csqrt (double complex z);
float complex csqrtf (float complex z);
long double complex csqrtl (long double complex z);
double carg (double complex z);
float cargf (float complex z);
long double cargl (long double complex z);
double cimag (double complex z);
float cimagf (float complex z);
long double cimagl (long double complex z);
double complex CMPLX (double x, double y);
float complex CMPLXF (float x, float y);
long double complex CMPLXL (long double x, long double y);
double complex conj (double complex z);
float complex conjf (float complex z);
long double complex conjl (long double complex z);
double complex cproj (double complex z);
float complex cprojf (float complex z);
long double complex cprojl (long double complex z);
double creal (double complex z);
float crealf (float complex z);
long double creall (long double complex z);
 
// Only if the implementation defines __STDC_IEC_60559_TYPES__ and additionally the user
// code defines __STDC_WANT_IEC_60559_TYPES_EXT__ before any inclusion of <complex.h>:
#ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
/*_FloatN*/ complex /*cacosfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*cacosfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*casinfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*casinfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*catanfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*catanfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*ccosfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*ccosfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*csinfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*csinfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*ctanfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*ctanfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*cacoshfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*cacoshfNx*/( /*_FloatNx*/ complex z);
/*_FloatN*/ complex /*casinhfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*casinhfNx*/( /*_FloatNx*/ complex z);
/*_FloatN*/ complex /*catanhfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*catanhfNx*/( /*_FloatNx*/ complex z);
/*_FloatN*/ complex /*ccoshfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*ccoshfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*csinhfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*csinhfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*ctanhfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*ctanhfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*cexpfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*cexpfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*clogfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*clogfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ /*cabsfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ /*cabsfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*cpowfN*/(/*_FloatN*/ complex x, /*_FloatN*/ complex y);
/*_FloatNx*/ complex /*cpowfNx*/(/*_FloatNx*/ complex x, /*_FloatNx*/ complex y);
/*_FloatN*/ complex /*csqrtfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*csqrtfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ /*cargfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ /*cargfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ /*cimagfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ /*cimagfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*CMPLXFN*/(/*_FloatN*/ x, /*_FloatN*/ y);
/*_FloatNx*/ complex /*CMPLXFNX*/(/*_FloatNx*/ x, /*_FloatNx*/ y);
/*_FloatN*/ complex /*conjfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*conjfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ complex /*cprojfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ complex /*cprojfNx*/(/*_FloatNx*/ complex z);
/*_FloatN*/ /*crealfN*/(/*_FloatN*/ complex z);
/*_FloatNx*/ /*crealfNx*/(/*_FloatNx*/ complex z);
#endif
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