Cubic Spline Interpolation

CSINTERP Function (PV-WAVE Advantage)—Derivative end conditions.

CSSHAPE Function (PV-WAVE Advantage)—Shape preserving.

B-spline Interpolation

BSINTERP Function (PV-WAVE Advantage)—One-dimensional and two-dimensional interpolation.

BSKNOTS Function (PV-WAVE Advantage)—Knot sequence given interpolation data.

B-spline and Cubic Spline Evaluation and Integration

SPVALUE Function (PV-WAVE Advantage)—Evaluation and differentiation.

SPINTEG Function (PV-WAVE Advantage)—Integration.

Least-squares Approximation and Smoothing

FCNLSQ Function (PV-WAVE Advantage)—General functions.

BSLSQ Function (PV-WAVE Advantage)—Splines with fixed knots.

CONLSQ Function (PV-WAVE Advantage)—Constrained spline fit.

CSSMOOTH Function (PV-WAVE Advantage)—Cubic-smoothing spline.

WgSplineTool Procedure (PV-WAVE Advantage)—Widget-based interface.

SMOOTHDATA1D Function (PV-WAVE Advantage)—Smooth one-dimensional data by error detection.

POLYEVAL Function (PV-WAVE Advantage)—Evaluates a polynomial.

WENDCOEF Function (PV-WAVE Advantage)—Computes the coefficients for the Wendland polynomial of type (d,k).

POLYFITN Function (PV-WAVE Advantage)—Fits a polynomial.

Scattered Data Interpolation

SCAT2DINTERP Function (PV-WAVE Advantage)—Akima’s surface-fitting method.

RADBF Function (PV-WAVE Advantage)—Computes a fit using radial-basis functions.

RADBE Function (PV-WAVE Advantage)—Evaluates a radial-basis fit.

RBFIMSCL Procedure (PV-WAVE Advantage)—Multiscale radial basis interpolation for n-dimensional data.