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clogf(3p) |
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clog, clogf, clogl − complex natural logarithm functions
#include <complex.h>
double
complex clog(double complex z);
float complex clogf(float complex z);
long double complex clogl(long double complex
z);
These functions shall compute the complex natural (base e) logarithm of z, with a branch cut along the negative real axis.
These functions shall return the complex natural logarithm value, in the range of a strip mathematically unbounded along the real axis and in the interval [-ipi, +ipi] along the imaginary axis.
No errors are defined.
The following sections are informative.
None.
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cexp() , the Base Definitions volume of IEEE Std 1003.1-2001, <complex.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .
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clogf(3p) | |