C4
C4 = -2.75573143513906633035e-07, /* 0xBE927E4F, 0x809C52AD */
r = z*(C1+z*(C2+z*C3)) + w*w*(C4+z*(C5+z*C6));
C4 = -0.00000027557319215507120, /* -0x127e4fb7602f22.0p-74 */
#define POLY(z) (z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*(C6+z*C7)))))))
C4 = -0.2755731922398589065255474947078934284324e-6L,
#define POLY(z) (z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*(C6+z*(C7+ \
tmp = tail + r + r2 * (C2 + r * C3) + r2 * r2 * (C4 + r * C5);
tmp = tail + r * C1 + r2 * (C2 + r * C3) + r2 * r2 * (C4 + r * C5);
tmp = tail + r + r2 * (C2 + r * C3) + r2 * r2 * (C4 + r * C5);