CLOG(3P)

πŸ“¦ version 2017a, in alpine 3.22, alpine 3.23, alpine 3.24, arch rolling, nixpkgs unstable, opensuse-leap 16.0

πŸ’– CLOG(3P) β€” like, the POSIX Programmer's Manual, bestie πŸ’–

okay so real talk first: this page lives inside the POSIX Programmer's Manual. The Linux version of this interface might be a whole different vibe (so go check the matching Linux man page for the tea), or honestly it might not even be implemented on Linux at all. πŸ™ˆ

✨ PROLOG ✨

This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the corresponding Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

🌸 NAME 🌸

clog, clogf, clogl β€” complex natural logarithm functions

the trio. the girls. the natural log but make it complex πŸ’…

πŸŽ€ SYNOPSIS πŸŽ€

#include <complex.h>

double complex clog(double complex z);
float complex clogf(float complex z);
long double complex clogl(long double complex z);

πŸ¦‹ DESCRIPTION πŸ¦‹

The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1‐2017 defers to the ISO C standard.

okay so basically: these functions shall compute the complex natural (base e) logarithm of z, with a branch cut along the negative real axis. yes, there's a cut. it's giving βœ‚οΈ but mathematically. don't cross it, iykyk.

πŸ’œ RETURN VALUE πŸ’œ

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 [-iΟ€, +iΟ€] along the imaginary axis.

so the real part can go wherever it wants (unbounded, main character energy, no limits), but the imaginary part stays locked in that [-iΟ€, +iΟ€] window. periodt. πŸ”₯

πŸ’€ ERRORS πŸ’€

No errors are defined.

not a single one. flawless. ✨

The following sections are informative.

πŸ“ EXAMPLES πŸ“

None.

(literally nothing. the audacity. but okay bestie, we respect it. 😭)

🌈 APPLICATION USAGE 🌈

None.

🧚 RATIONALE 🧚

None.

⭐ FUTURE DIRECTIONS ⭐

None.

🫢 SEE ALSO 🫢

  • cexp()
  • The Base Definitions volume of POSIX.1‐2017, <complex.h>

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, 2018 Edition, Copyright (C) 2018 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 .

Any typographical or formatting errors that appear in this page are most likely to have been introduced during the conversion of the source files to man page format. To report such errors, see https://www.kernel.org/doc/man-pages/reporting_bugs.html .

πŸŽ€ bestie heads up: if this page and the original IEEE + The Open Group Standard ever disagree, the original is the referee. no cap. the original wins, always.

okay that's the whole page, love you, mwah πŸ’– this came to you courtesy of IEEE/The Open Group, 2017 β€” they're the ones who put out this CLOG(3P) page, and we're just here, slaying it into group-chat format. πŸ¦‹βœ¨

πŸ“¦ where this page comes from