PI3o4
if(a >= PI3o4) /* ... in [3PI/4,PI] */
if (a >= PI3o4) { /* ... in [3PI/4,PI] */
vc(PI3o4, 2.3561944901923449203E0 ,cbe3,4116,0e92,f999, 2, .96CBE3F9990E92)
ic(PI3o4, 2.3561944901923448370E0 , 1, 1.2D97C7F3321D2)
#define PI3o4 vccast(PI3o4)