cimag(3M) Mathematical Library Functions cimag(3M)NAME
cimag, cimagf, cimagl - complex imaginary functions
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <complex.h>
double cimag(double complex z);
float cimagf(float complex z);
long double cimagl(long double complex z);
DESCRIPTION
These functions compute the imaginary part of z.
RETURN VALUES
These functions return the imaginary part value (as a real).
ERRORS
No errors are defined.
ATTRIBUTES
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
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <complex.h>
double
cimag(double complex z);
float
cimagf(float complex z);
long double
cimagl(long double complex z);
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);
DESCRIPTION
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.
STANDARDS
The cimag(), conj(), cproj(), and creal() functions conform to ISO/IEC 9899:1999 (``ISO C99'').
HISTORY
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
Hello,
I have been trying to use an awk script to parse out correct and incorrect answers in a simple tab-delimited text file. I am trying to compare the user's response to the stimulus presented (in this case, an arrow pointing left or right; e.g., "<--" vs. "-->"). I have the data for the... (6 Replies)
Hello All,
I am working on a code with my adviser,but have run into some problems. I was wondering: Can anyone see what I am doing wrong and/or point me in the right direction. I have an experiment where objects are presented in a circular display, and rotate clockwise or counter depending on... (4 Replies)
Hi
I'm trying to install libcvd libraries (running Ubuntu 10.10) but get errors, I guesss its saying I miss dc1394v1 and ffmpeg. Altough when looking in synaptic manager I appear to have ffmpeg and libdc1394 (version 2). When I do ./config, after all the checks, I get:
Options:... (3 Replies)
hello,
i have a lot of C old code I'm updating to C11 with tgmath.h for generic math. the old code has very specific types, real and complex, like cabsl, csinhl, etc
usually for simple bulk replacements i would do something simple like this
perl -pi -e 's/cosl/cos/g' *.c
the reference... (0 Replies)