| C02AFF | All zeros of complex polynomial, modified Laguerre method |
| C02AGF | All zeros of real polynomial, modified Laguerre method |
| E01AEF | Interpolating functions, polynomial interpolant, data may include derivative values, one variable |
| E02AEF | Evaluation of fitted polynomial in one variable from Chebyshev series form (simplified parameter list) |
| E02AFF | Least-squares polynomial fit, special data points (including interpolation) |
| E02AGF | Least-squares polynomial fit, values and derivatives may be constrained, arbitrary data points |
| E02AHF | Derivative of fitted polynomial in Chebyshev series form |
| E02AJF | Integral of fitted polynomial in Chebyshev series form |
| E02AKF | Evaluation of fitted polynomial in one variable from Chebyshev series form |
| E02CBF | Evaluation of fitted polynomial in two variables |