cimag(3M) Mathematical Library Functions cimag(3M)NAME
cimag, cimagf, cimagl - complex imaginary functions
c99 [ flag... ] file... -lm [ library... ]
double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);
These functions compute the imaginary part of z.
These functions return the imaginary part value (as a real).
No errors are defined.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Interface Stability |Standard |
|MT-Level |MT-Safe |
SEE ALSO carg(3M), complex.h(3HEAD), conj(3M), cproj(3M), creal(3M), attributes(5), standards(5)SunOS 5.11 12 Jul 2006 cimag(3M)
Check Out this Related Man Page
CIMAG(3) BSD Library Functions Manual CIMAG(3)NAME
cimag, cimagf, cimagl, conj, conjf, conjl, cproj, cprojf, cprojl, creal, crealf, creall -- functions to manipulate complex numbers
Math Library (libm, -lm)
cimag(double complex z);
cimagf(float complex z);
cimagl(long double complex z);
conj(double complex z);
conjf(float complex z);
long double complex
conjl(long double complex z);
cproj(double complex z);
cprojf(float complex z);
long double complex
cprojl(long double complex z);
creal(double complex z);
crealf(float complex z);
creall(long double complex z);
Let a+b*i denote the complex number z.
The creal() functions return the real part a, and the cimag() functions return the imaginary part b.
The conj() functions return the complex conjugate a-b*i.
The cproj() functions return the projection onto the Riemann sphere. If z contains an infinite component, then the result is infinity +-
0*i, where the (zero) imaginary part of the result has the same sign as b. Otherwise, the result is z.
These functions do not signal any floating point exceptions.
The cimag(), conj(), cproj(), and creal() functions conform to ISO/IEC 9899:1999 (``ISO C99'').
The cimag(), conj() and creal() functions first appeared in FreeBSD 5.3. The cproj() functions appeared in FreeBSD 8.0.
BSD August 7, 2008 BSD
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