From f127495caa2d45a1b1fff3be7a9d3756259d23e2 Mon Sep 17 00:00:00 2001 From: px4dev Date: Fri, 11 Jan 2013 02:14:43 -0800 Subject: Manually fixup merge botches via direct comparison with NuttX r5447. --- nuttx/libc/math/lib_sinhf.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 nuttx/libc/math/lib_sinhf.c (limited to 'nuttx/libc/math/lib_sinhf.c') diff --git a/nuttx/libc/math/lib_sinhf.c b/nuttx/libc/math/lib_sinhf.c new file mode 100644 index 000000000..e9d198440 --- /dev/null +++ b/nuttx/libc/math/lib_sinhf.c @@ -0,0 +1,42 @@ +/************************************************************************ + * libc/math/lib_sinhf.c + * + * This file is a part of NuttX: + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Ported by: Darcy Gong + * + * It derives from the Rhombs OS math library by Nick Johnson which has + * a compatibile, MIT-style license: + * + * Copyright (C) 2009, 2010 Nick Johnson + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + ************************************************************************/ + +/************************************************************************ + * Included Files + ************************************************************************/ + +#include + +/************************************************************************ + * Public Functions + ************************************************************************/ + +float sinhf(float x) +{ + x = expf(x); + return ((x - (1.0 / x)) / 2.0); +} -- cgit v1.2.3