yf                751 ext/gd/libgd/gd_interpolation.c 	const double yf = y - (double)sy;
yf                753 ext/gd/libgd/gd_interpolation.c 	const double nyf = (double) 1.0 - yf;
yf                754 ext/gd/libgd/gd_interpolation.c 	const double m1 = xf * yf;
yf                755 ext/gd/libgd/gd_interpolation.c 	const double m2 = nxf * yf;