__vsincos
extern void __vsincos(int, double *, int, double *, int, double *, int);
__vsincos(n, x + 1, stridex, y + 1, stridey, y, stridey);
extern void __vsincos(int, double *, int, double *, int, double *, int);
__vsincos(*n, x, *stridex, s, *strides, c, *stridec);