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Lines Matching defs:sqrt

36  * Some IEEE standard 754 recommended functions and remainder and sqrt for
42  * slow (in particular, drem and sqrt is extremely inefficient). Each
51  *     sqrt(x)
270 sqrt(double x)
281     /* sqrt(NaN) is NaN, sqrt(+-0) = +-0 */
284     /* sqrt(negative) is invalid */
293     /* sqrt(INF) is INF */
304     /* generate sqrt(x) bit by bit (accumulating in q) */
427 /* SQRT
428  * RETURN CORRECTLY ROUNDED (ACCORDING TO THE ROUNDING MODE) SQRT
475 	if(x!=x||x==0.0) return(x);  /* sqrt(NaN) is NaN, sqrt(+-0) = +-0 */
476 	if(x<0) return((x-x)/(x-x)); /* sqrt(negative) is invalid */
477         if((mx=px[n0]&mexp)==mexp) return(x);  /* sqrt(+INF) is +INF */
500 /* triple to almost 56 sig. bits; now y approx. sqrt(x) to within 1 ulp */
511         b54+0.1;        /* ..trigger inexact flag, sqrt(x) is inexact */
515         py[n0]=py[n0]-0x00100000;       /* ...correctly rounded sqrt(x) */