Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / reactos / sdk / lib / crt / math / amd64 / asin.c

diff --git a/reactos/sdk/lib/crt/math/amd64/asin.c b/reactos/sdk/lib/crt/math/amd64/asin.c
deleted file mode 100644 (file)
index 78eda46..0000000
--- a/reactos/sdk/lib/crt/math/amd64/asin.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * COPYRIGHT:        See COPYING in the top level directory
- * PROJECT:          ReactOS CRT
- * FILE:             lib/sdk/crt/math/amd64/asin.c
- * PURPOSE:          Generic C implementation of arc sine
- * PROGRAMMER:       Timo Kreuzer (timo.kreuzer@reactos.org)
- */
-
-#define PRECISION 9
-
-/*
- * The arc sine can be approximated with the following row:
- *
- *   asin(x) = a0*x + a1*x^3 + a2*x^5 + a3*x^7 + a4*x^9 + ...
- *
- * To reduce the number of multiplications the formula is transformed to
- *
- *   asin(x) = x * (1 + x^2*(a1 + x^2*(a2 + x^2*(a3 + ...) ) ) )
- *
- * The coefficients are:
- *   a0 = 1
- *   a1 = (1/2*3)
- *   a2 = (3*1/4*2*5)
- *   a3 = (5*3*1/6*4*2*7)
- *   a4 = (7*5*3*1/8*6*4*2*9)
- *   a5 = (9*7*5*3*1/10*8*6*4*2*11)
- *   ...
- */
-
-double
-asin(double x)
-{
-    double x2, result;
-
-    /* Check range */
-    if ((x > 1.) || (x < -1.)) return NaN;
-
-    /* Calculate the square of x */
-    x2 = (x * x);
-
-    /* Start with 0, compiler will optimize this away */
-    result = 0;
-
-    result += (15*13*11*9*7*5*3*1./(16*14*12*10*8*6*4*2*17));
-    result *= x2;
-
-    result += (13*11*9*7*5*3*1./(14*12*10*8*6*4*2*15));
-    result *= x2;
-
-    result += (11*9*7*5*3*1./(12*10*8*6*4*2*13));
-    result *= x2;
-
-    result += (9*7*5*3*1./(10*8*6*4*2*11));
-    result *= x2;
-
-    result += (7*5*3*1./(8*6*4*2*9));
-    result *= x2;
-
-    result += (5*3*1./(6*4*2*7));
-    result *= x2;
-
-    result += (3*1./(4*2*5));
-    result *= x2;
-
-    result += (1./(2*3));
-    result *= x2;
-
-    result += 1.;
-    result *= x;
-
-    return result;
-}
-