Lines Matching refs:z
165 double y,z; local
177 z = ieee_floor(y);
178 if(z!=y) { /* inexact anyway */
186 if(ix<0x43300000) z = y+two52; /* exact */
187 n = __LO(z)&1; /* lower word of z */
213 double t,y,z,nadj,p,p1,p2,p3,q,r,w; local
257 z = y*y;
258 p1 = a0+z*(a2+z*(a4+z*(a6+z*(a8+z*a10))));
259 p2 = z*(a1+z*(a3+z*(a5+z*(a7+z*(a9+z*a11)))));
263 z = y*y;
264 w = z*y;
268 p = z*p1-(tt-w*(p2+y*p3));
283 z = one; /* ieee_lgamma(1+s) = ieee_log(s) + ieee_lgamma(s) */
285 case 7: z *= (y+6.0); /* FALLTHRU */
286 case 6: z *= (y+5.0); /* FALLTHRU */
287 case 5: z *= (y+4.0); /* FALLTHRU */
288 case 4: z *= (y+3.0); /* FALLTHRU */
289 case 3: z *= (y+2.0); /* FALLTHRU */
290 r += __ieee754_log(z); break;
295 z = one/x;
296 y = z*z;
297 w = w0+z*(w1+y*(w2+y*(w3+y*(w4+y*(w5+y*w6)))));