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| author | Gregory Nutt <gnutt@nuttx.org> | 2015-01-23 17:15:42 -0600 |
|---|---|---|
| committer | Gregory Nutt <gnutt@nuttx.org> | 2015-01-23 17:15:42 -0600 |
| commit | 464482d7b23646a7eabc053cf140c87ca5264a5b (patch) | |
| tree | 2b1e52838bb9d0635817d7337b74de3efa818006 | |
| parent | 0640867842ca790e7ce9a609a5834690c2abd531 (diff) | |
| download | nuttx-464482d7b23646a7eabc053cf140c87ca5264a5b.tar.gz nuttx-464482d7b23646a7eabc053cf140c87ca5264a5b.tar.bz2 nuttx-464482d7b23646a7eabc053cf140c87ca5264a5b.zip | |
Math library: Adds support for the expm1 functions: http://pubs.opengroup.org/onlinepubs/009695399/functions/expm1.html. From Brennan Ashton
| -rw-r--r-- | nuttx/include/nuttx/math.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nuttx/include/nuttx/math.h b/nuttx/include/nuttx/math.h index c97c525fd..977d8cac9 100644 --- a/nuttx/include/nuttx/math.h +++ b/nuttx/include/nuttx/math.h @@ -1,7 +1,7 @@ /**************************************************************************** * include/nuttx/math.h * - * Copyright (C) 2009, 2012, 2014 Gregory Nutt. All rights reserved. + * Copyright (C) 2009, 2012, 2014-2015 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -193,11 +193,14 @@ long double powl (long double b, long double e); #endif float expf (float x); +#define expm1f(x) (expf(x) - 1.0) #if CONFIG_HAVE_DOUBLE double exp (double x); +#define expm1(x) (exp(x) - 1.0) #endif #ifdef CONFIG_HAVE_LONG_DOUBLE long double expl (long double x); +#define expm1l(x) (expl(x) - 1.0) #endif float logf (float x); |