#include "libm.h"
static const float
-one = 1.0000000000e+00, /* 0x3F800000 */
huge = 1.000e+30,
/* coefficients for R(x^2) */
pS0 = 1.6666586697e-01,
return (x-x)/(x-x); /* asin(|x|>1) is NaN */
} else if (ix < 0x3f000000) { /* |x|<0.5 */
if (ix < 0x39800000) { /* |x| < 2**-12 */
- if (huge+x > one)
+ if (huge+x > 1.0f)
return x; /* return x with inexact if x!=0 */
}
t = x*x;
p = t*(pS0+t*(pS1+t*pS2));
- q = one+t*qS1;
+ q = 1.0f+t*qS1;
w = p/q;
return x + x*w;
}
/* 1 > |x| >= 0.5 */
- w = one - fabsf(x);
- t = w*(float)0.5;
+ w = 1.0f - fabsf(x);
+ t = w*0.5f;
p = t*(pS0+t*(pS1+t*pS2));
- q = one+t*qS1;
+ q = 1.0f+t*qS1;
s = sqrt(t);
w = p/q;
t = pio2-2.0*(s+s*w);