CTANH(3P)

🦋 CTANH(3P) — the POSIX Programmer's Manual, bestie edition

okay so real talk, this page lives in the POSIX Programmer's Manual, and before we even get into it, there's a whole PROLOG vibe check you need to pass. ✨

💜 PROLOG

This manual page is part of the POSIX Programmer's Manual. That's the lore. But heads up: the Linux implementation of this interface may differ (so like, go consult the corresponding Linux manual page for the actual Linux behavior, bestie), or honestly the interface may not be implemented on Linux at all. Not me warning you about that upfront 💀

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✨ NAME ✨

ctanh, ctanhf, ctanhl — the complex hyperbolic tangent functions. that's the whole girl squad right there 🫶

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🌸 SYNOPSIS 🌸

#include <complex.h>

double complex ctanh(double complex z);
float complex ctanhf(float complex z);
long double complex ctanhl(long double complex z);

three functions, three levels of precision, one shared destiny. the way they all take a <complex.h> and just ✨exist✨.

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💅 DESCRIPTION 💅

okay so first things first: 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 — like, nobody's trying to start drama. This volume of POSIX.1‐2017 defers to the ISO C standard. periodt.

And then: these functions shall compute the complex hyperbolic tangent of z. that's it. that's the job. iconic behavior honestly 👑

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🎀 RETURN VALUE 🎀

These functions shall return the complex hyperbolic tangent value. no plot twists, no surprises, just the value. ate and left no crumbs 🍓

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🌈 ERRORS 🌈

No errors are defined. not a single one. she simply does not do errors. 💅

Also, just so you know: the following sections are informative. (yes bestie, that means what you think it means.)

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🦋 EXAMPLES 🦋

None. literally nothing here. moving on, we respect the privacy ✨

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🧚 APPLICATION USAGE 🧚

None. same energy. empty. pristine. no notes. 🙈

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⭐ RATIONALE ⭐

None. she doesn't owe you an explanation and honestly? valid. 💜

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🔥 FUTURE DIRECTIONS 🔥

None. the future is bright and completely unspecified. slay ✨

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👑 SEE ALSO 👑

• catanh()

And the Base Definitions volume of POSIX.1‐2017, <complex.h>. go read your bestie's page too, they're connected, iykyk 🫶

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💖 COPYRIGHT 💖

okay so legal bestie moment, let's get through it together:

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, they're the final boss, no arguing. 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 . (blame the converter, not the girl 💀)

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and that's a wrap, bestie!! 🎀 this whole page came to you courtesy of IEEE/The Open Group, 2017, filed under CTANH(3P). go compute that complex hyperbolic tangent, you main character, and remember: no errors defined, no problems detected 💅✨🦋