1ATANL(3P)                  POSIX Programmer's Manual                 ATANL(3P)
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PROLOG

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

12       atanl — arc tangent function
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SYNOPSIS

15       #include <math.h>
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17       long double atanl(long double x);
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DESCRIPTION

20       Refer to atan().
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23       Portions of this text are reprinted and reproduced in  electronic  form
24       from  IEEE Std 1003.1-2017, Standard for Information Technology -- Por‐
25       table Operating System Interface (POSIX), The Open Group Base  Specifi‐
26       cations  Issue  7, 2018 Edition, Copyright (C) 2018 by the Institute of
27       Electrical and Electronics Engineers, Inc and The Open Group.   In  the
28       event of any discrepancy between this version and the original IEEE and
29       The Open Group Standard, the original IEEE and The Open Group  Standard
30       is  the  referee document. The original Standard can be obtained online
31       at http://www.opengroup.org/unix/online.html .
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33       Any typographical or formatting errors that appear  in  this  page  are
34       most likely to have been introduced during the conversion of the source
35       files to man page format. To report such errors,  see  https://www.ker‐
36       nel.org/doc/man-pages/reporting_bugs.html .
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40IEEE/The Open Group                  2017                            ATANL(3P)
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