| E01DAF
| Interpolating functions, fitting bicubic spline, data on rectangular grid |
| 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 |
| E02DEF
| Evaluation of fitted bicubic spline at a vector of points |
| E02DFF
| Evaluation of fitted bicubic spline at a mesh of points |
| E02DHF
| Evaluation of spline surface at mesh of points with derivatives |
| E02ZAF
| Sort two-dimensional data into panels for fitting bicubic splines |