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E02 (Fit) Chapter Introduction – A description of the Chapter and an overview of the algorithms available.

Function	Mark of Introduction	Purpose
e02adc	5	nag_fit_dim1_cheb_arb Computes the coefficients of a Chebyshev series polynomial for arbitrary data
e02aec	5	nag_fit_dim1_cheb_eval Evaluates the coefficients of a Chebyshev series polynomial
e02afc	5	nag_fit_dim1_cheb_glp Computes the coefficients of a Chebyshev series polynomial for interpolated data
e02agc	7	nag_fit_dim1_cheb_con Least squares polynomial fit, values and derivatives may be constrained, arbitrary data points
e02ahc	7	nag_fit_dim1_cheb_deriv Derivative of fitted polynomial in Chebyshev series form
e02ajc	7	nag_fit_dim1_cheb_integ Integral of fitted polynomial in Chebyshev series form
e02akc	7	nag_fit_dim1_cheb_eval2 Evaluation of fitted polynomial in one variable from Chebyshev series form
e02alc	24	nag_fit_dim1_minimax_polynomial Minimax curve fit by polynomials
e02bac	2	nag_fit_dim1_spline_knots Least squares curve cubic spline fit (including interpolation), one variable
e02bbc	2	nag_fit_dim1_spline_eval Evaluation of fitted cubic spline, function only
e02bcc	2	nag_fit_dim1_spline_deriv Evaluation of fitted cubic spline, function and derivatives
e02bdc	2	nag_fit_dim1_spline_integ Evaluation of fitted cubic spline, definite integral
e02bec	2	nag_fit_dim1_spline_auto Least squares cubic spline curve fit, automatic knot placement, one variable
e02bfc	24	nag_fit_dim1_spline_deriv_vector Evaluation of fitted cubic spline, function and optionally derivatives at a vector of points
e02cac	7	nag_fit_dim2_cheb_lines Least squares surface fit by polynomials, data on lines parallel to one independent coordinate axis
e02cbc	7	nag_fit_dim2_cheb_eval Evaluation of fitted polynomial in two variables
e02dac	8	nag_fit_dim2_spline_panel Least squares surface fit, bicubic splines
e02dcc	2	nag_fit_dim2_spline_grid Least squares bicubic spline fit with automatic knot placement, two variables (rectangular grid)
e02ddc	2	nag_fit_dim2_spline_sctr Least squares bicubic spline fit with automatic knot placement, two variables (scattered data)
e02dec	2	nag_fit_dim2_spline_evalv Evaluation of bicubic spline, at a set of points
e02dfc	2	nag_fit_dim2_spline_evalm Evaluation of bicubic spline, at a mesh of points
e02dhc	23	nag_fit_dim2_spline_derivm Evaluation of spline surface at mesh of points with derivatives
e02gac	7	nag_fit_glin_l1sol $L_1$-approximation by general linear function
e02gcc	7	nag_fit_glin_linf $L_{\infty }$-approximation by general linear function
e02jdc	24	nag_fit_dim2_spline_ts_sctr Spline approximation to a set of scattered data using a two-stage approximation method
e02jec	24	nag_fit_dim2_spline_ts_evalv Evaluation at a vector of points of a spline computed by e02jdc
e02jfc	24	nag_fit_dim2_spline_ts_evalm Evaluation at a mesh of points of a spline computed by e02jdc
e02rac	7	nag_fit_pade_app Padé approximants
e02rbc	7	nag_fit_pade_eval Evaluation of fitted rational function as computed by e02rac
e02zac	8	nag_fit_dim2_spline_sort Sort two-dimensional data into panels for fitting bicubic splines
e02zkc	24	nag_fit_opt_set Option setting routine
e02zlc	24	nag_fit_opt_get Option getting routine

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