KM_P0             496 ext/gd/libgd/gd_interpolation.c 		return(KM_P0+x*x*(KM_P2-x*KM_P3));
KM_P0             498 ext/gd/libgd/gd_interpolation.c 		return(KM_P0+x*x*(KM_P2+x*KM_P3));