From 5375bb5b86e266157ceceef08c367da711b8144e Mon Sep 17 00:00:00 2001 From: Lorenz Meier Date: Sat, 1 Jun 2013 01:04:32 +0200 Subject: Cleanup, WIP, needs a NuttX checkout to Firmware/NuttX now --- nuttx/libc/math/lib_tanhf.c | 44 -------------------------------------------- 1 file changed, 44 deletions(-) delete mode 100644 nuttx/libc/math/lib_tanhf.c (limited to 'nuttx/libc/math/lib_tanhf.c') diff --git a/nuttx/libc/math/lib_tanhf.c b/nuttx/libc/math/lib_tanhf.c deleted file mode 100644 index 43d418204..000000000 --- a/nuttx/libc/math/lib_tanhf.c +++ /dev/null @@ -1,44 +0,0 @@ -/************************************************************************ - * libc/math/lib_tanhf.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 tanhf(float x) -{ - float x0 = expf(x); - float x1 = 1.0 / x0; - - return ((x0 + x1) / (x0 - x1)); -} -- cgit v1.2.3