ACOSL(3POSIX)

💖 ACOSL(3POSIX) 💖

okay bestie, welcome to the POSIX Programmer's Manual ✨ this one's a little baby page but she's important, so let's give her the attention she deserves 🫶

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🌸 PROLOG 🌸

okay so first things first, bestie, a lil heads up before you dive in: 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. so if you're on Linux, pls pls pls go consult the corresponding Linux manual page for the deets on Linux behavior, okay? and also? the interface might not even be implemented on Linux at all 😭 not every POSIX thing makes it over here, it's giving exclusive 💅

lowkey a vibe check before the main event. don't skip it. 🙈

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✨ NAME ✨

acosl — arc cosine functions 🌈

(yeah that's it. short, sweet, iconic, she said what she said 👑)

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🎀 SYNOPSIS 🎀

#include <math.h>

long double acosl(long double x);

so you gotta pull in <math.h> first, that's non-negotiable bestie 🧚 then you've got acosl taking a long double x and handing you back a long double. that's the whole shape of it. periodt. 💅

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🦋 DESCRIPTION 🦋

bestie, the description here is literally just:

Refer to acos().

that's it. that's the whole description. 😭 the POSIX girlies were feeling minimalist that day, so they pointed you at her sibling acos() for the actual math lore. go read that one, she's got the full story 📖✨

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👑 COPYRIGHT 👑

okay now the boring-but-important part, bestie, don't scroll past this one, it's giving legal 💀

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. like, the original is the main character here, no cap 👑 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 .

fr fr if you spot a typo it's probably the conversion's fault, not the Standard's. report it at that link and move on with your day 🌸

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and that's the whole page, bestie!! short queen, but she said everything she needed to say 💖 this one's from IEEE/The Open Group, dated 2017, and honestly? she ate. slay. go call acosl() and live your best life ✨🦋💅