#define	_POLY1(x, c)	((c)[0] * (x) + (c)[1])
#define	_POLY2(x, c)	(_POLY1((x), (c)) * (x) + (c)[2])
#define	_POLY3(x, c)	(_POLY2((x), (c)) * (x) + (c)[3])
#define	_POLY4(x, c)	(_POLY3((x), (c)) * (x) + (c)[4])
#define	_POLY5(x, c)	(_POLY4((x), (c)) * (x) + (c)[5])
#define	_POLY6(x, c)	(_POLY5((x), (c)) * (x) + (c)[6])
#define	_POLY7(x, c)	(_POLY6((x), (c)) * (x) + (c)[7])
#define	_POLY8(x, c)	(_POLY7((x), (c)) * (x) + (c)[8])
#define	_POLY9(x, c)	(_POLY8((x), (c)) * (x) + (c)[9])