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creal (3)
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NAME
creal, crealf, creall - complex real functions
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <complex.h>
double creal(double complex z);
float crealf(float complex z);
long double creall(long double complex z);
DESCRIPTION
These functions compute the real part of z.
RETURN VALUES
These functions return the real part value.
ERRORS
No errors are defined.
USAGE
For a variable z of complex type:
z == creal(z) + cimag(z)*I
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE
|
|
| Interface Stability | Standard
|
|
| MT-Level |
|
SEE ALSO
carg(3M), cimag(3M), complex.h(3HEAD), conj(3M), cproj(3M), attributes(5), standards(5)
Index
- NAME
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- SYNOPSIS
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- DESCRIPTION
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- RETURN VALUES
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- ERRORS
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- USAGE
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- ATTRIBUTES
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- SEE ALSO
-