NAG C Library Manual, Mark 7 : e02 Chapter Contents

e02 – Curve and Surface Fitting

Routine Name	Mark of Introduction	Purpose
e02adc Example Text Example Data	5	nag_1d_cheb_fit Computes the coefficients of a Chebyshev series polynomial for arbitrary data
e02aec Example Text Example Data	5	nag_1d_cheb_eval Evaluates the coefficients of a Chebyshev series polynomial
e02afc Example Text Example Data	5	nag_1d_cheb_interp_fit Computes the coefficients of a Chebyshev series polynomial for interpolated data
e02agc Example Text Example Data	7	nag_1d_cheb_fit_constr Least-squares polynomial fit, values and derivatives may be constrained, arbitrary data points
e02ahc Example Text	7	nag_1d_cheb_deriv Derivative of fitted polynomial in Chebyshev series form
e02ajc Example Text	7	nag_1d_cheb_intg Integral of fitted polynomial in Chebyshev series form
e02akc Example Text	7	nag_1d_cheb_eval2 Evaluation of fitted polynomial in one variable from Chebyshev series form
e02bac Example Text Example Data	2	nag_1d_spline_fit_knots Least-squares curve cubic spline fit (including interpolation), one variable
e02bbc Example Text Example Data	2	nag_1d_spline_evaluate Evaluation of fitted cubic spline, function only
e02bcc Example Text Example Data	2	nag_1d_spline_deriv Evaluation of fitted cubic spline, function and derivatives
e02bdc Example Text Example Data	2	nag_1d_spline_intg Evaluation of fitted cubic spline, definite integral
e02bec Example Text Example Data	2	nag_1d_spline_fit Least-squares cubic spline curve fit, automatic knot placement, one variable
e02cac Example Text Example Data	7	nag_2d_cheb_fit_lines Least-squares surface fit by polynomials, data on lines
e02cbc Example Text Example Data	7	nag_2d_cheb_eval Evaluation of fitted polynomial in two variables
e02dcc Example Text Example Data	2	nag_2d_spline_fit_grid Least-squares bicubic spline fit with automatic knot placement, two variables (rectangular grid)
e02ddc Example Text Example Data	2	nag_2d_spline_fit_scat Least-squares bicubic spline fit with automatic knot placement, two variables (scattered data)
e02dec Example Text Example Data	2	nag_2d_spline_eval Evaluation of bicubic spline, at a set of points
e02dfc Example Text Example Data	2	nag_2d_spline_eval_rect Evaluation of bicubic spline, at a mesh of points
e02gac Example Text Example Data	7	nag_lone_fit L₁-approximation by general linear function
e02gcc Example Text Example Data	7	nag_linf_fit L_∞-approximation by general linear function
e02rac Example Text	7	nag_1d_pade Padé-approximants
e02rbc Example Text	7	nag_1d_pade_eval Evaluation of fitted rational function as computed by e02rac

Chapter Introduction

NAG C Library Manual