CACOSL(3POSIX)

💖 CACOSL — complex arc cosine functions, but make it long double 💖

okay bestie, real talk: this one is from the POSIX Programmer's Manual (that's the 3POSIX vibe, iykyk). Before we even get into it, there's a lil heads-up you need to know about.

🫶 PROLOG (the fine print, but make it cute)

So like — this manual page is part of the POSIX Programmer's Manual. But here's the tea: the Linux implementation of this interface may differ from what's written here. If you're on Linux, go check the corresponding Linux manual page for the actual details of Linux behavior, fr fr. Or — plot twist — the interface might just not be implemented on Linux at all. So like, vibe check your platform first. 💀

✨ NAME ✨

cacosl — complex arc cosine functions 🦋

🌸 SYNOPSIS 🌸

okay so here's the whole vibe, exactly as it is:

#include <complex.h>

long double complex cacosl(long double complex z);

that's it. that's the whole thing. iconic.

🎀 DESCRIPTION 🎀

ngl this one's short and sweet — you gotta refer to cacos(). That's where the actual deets live. cacosl is just the long double girlie of the family, periodt. 💅

👑 COPYRIGHT 👑

okay so legally I have to tell you this, no cap:

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. 💜

And listen — 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. Like, the original is the main character here, not this page. 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 . 🐛

not me keeping every single legal detail in here because the facts do not change, only the vibe. 🫶

sign-off szn: this lil page came from IEEE/The Open Group, dated 2017, and yes, the manual name is CACOSL(3POSIX) — catch you in the next one, bestie ✨💖