nxf               752 ext/gd/libgd/gd_interpolation.c 	const double nxf = (double) 1.0 - xf;
nxf               755 ext/gd/libgd/gd_interpolation.c 	const double m2 = nxf * yf;
nxf               757 ext/gd/libgd/gd_interpolation.c 	const double m4 = nxf * nyf;