Lines Matching defs:fn
77 long double z,w,t,r,fn;
87 /* Use a specialized rint() to get fn. Assume round-to-nearest. */
88 fn = x*invpio2+0x1.8p63;
89 fn = fn-0x1.8p63;
91 n = irint(fn);
93 n = fn;
95 r = x-fn*pio2_1;
96 w = fn*pio2_1t; /* 1st round good to 102 bit */
107 w = fn*pio2_2;
109 w = fn*pio2_2t-((t-r)-w);
116 w = fn*pio2_3;
118 w = fn*pio2_3t-((t-r)-w);