| E01SAF | Interpolating functions, method of Renka and Cline, two variables |
| E01SGF | Interpolating functions, modified Shepard's method, two variables |
| E01SHF | Interpolated values, evaluate interpolant computed by E01SGF, function and first derivatives, two variables |
| E01TGF | Interpolating functions, modified Shepard's method, three variables |
| E01THF | Interpolated values, evaluate interpolant computed by E01TGF, function and first derivatives, three variables |