1 files changed, 0 insertions, 114 deletions
diff --git a/nuttx/lib/math/lib_sin.c b/nuttx/lib/math/lib_sin.c
deleted file mode 100644
index c04d6b88b..000000000
--- a/nuttx/lib/math/lib_sin.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/************************************************************************
- * lib/math/lib_sin.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) 2009-2011 Nick Johnson <nickbjohnson4224 at gmail.com>
- * 
- * 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 <nuttx/config.h>
-#include <nuttx/compiler.h>
-
-#include <sys/types.h>
-#include <math.h>
-
-#ifdef CONFIG_HAVE_DOUBLE
-
-/************************************************************************
- * Private Data
- ************************************************************************/
-
-static double _dbl_inv_fact[] =
-{
-  1.0 / 1.0,                    // 1 / 1!
-  1.0 / 6.0,                    // 1 / 3!
-  1.0 / 120.0,                  // 1 / 5!
-  1.0 / 5040.0,                 // 1 / 7!
-  1.0 / 362880.0,               // 1 / 9!
-  1.0 / 39916800.0,             // 1 / 11!
-  1.0 / 6227020800.0,           // 1 / 13!
-  1.0 / 1307674368000.0,        // 1 / 15!
-  1.0 / 355687428096000.0,      // 1 / 17!
-  1.0 / 121645100408832000.0,   // 1 / 19!
-};
-
-/************************************************************************
- * Public Functions
- ************************************************************************/
-
-double sin(double x)
-{
-  double x_squared;
-  double sin_x;
-  size_t i;
-
-  /* Move x to [-pi, pi) */
-
-  x = fmod(x, 2 * M_PI);
-  if (x >= M_PI)
-    {
-      x -= 2 * M_PI;
-    }
-
-  if (x < -M_PI)
-    {
-      x += 2 * M_PI;
-    }
-
-  /* Move x to [-pi/2, pi/2) */
-
-  if (x >= M_PI_2)
-    {
-      x = M_PI - x;
-    }
-
-  if (x < -M_PI_2)
-    {
-      x = -M_PI - x;
-    }
-
-  x_squared = x * x;
-  sin_x = 0.0;
-
-  /* Perform Taylor series approximation for sin(x) with ten terms */
-
-  for (i = 0; i < 10; i++)
-    {
-      if (i % 2 == 0)
-        {
-          sin_x += x * _dbl_inv_fact[i];
-        }
-      else
-        {
-          sin_x -= x * _dbl_inv_fact[i];
-        }
-
-      x *= x_squared;
-    }
-
-  return sin_x;
-}
-#endif