| E02CAF
| Least squares surface fit by polynomials, data on lines parallel to one independent coordinate axis |
| E02DAF
| Least squares surface fit, bicubic splines |
| E02DCF
| Least squares surface fit by bicubic splines with automatic knot placement, data on rectangular grid |
| E02DDF
| Least squares surface fit by bicubic splines with automatic knot placement, scattered data |
| E02DHF
| Evaluation of spline surface at mesh of points with derivatives |
| E02JDF
| Spline approximation to a set of scattered data using a two-stage approximation method |
| E02JEF
| Evaluation at a vector of points of a spline computed by E02JDF |
| E02JFF
| Evaluation at a mesh of points of a spline computed by E02JDF |