nag_4d_shep_eval (e01tlc) Example Program Results i f(x) q(x) |f(x)-q(x)| 0 -0.0189 -0.0385 0.0196 1 -0.0186 0.0965 0.1151 2 0.1147 0.0613 0.0535 3 0.0096 -0.1494 0.1591 4 -0.1354 -0.1916 0.0562 5 0.0022 -0.1787 0.1809 6 -0.0095 -0.1220 0.1125 7 0.0113 -0.4374 0.4486