catmullrom
[octave-forge/main/splines/inst/catmullrom.m]
Returns the piecewise polynomial form of the Catmull-Rom cubic spline interpolating F at the points X.
csape
[octave-forge/main/splines/inst/csape.m]
cubic spline interpolation with various end conditions.
csapi
[octave-forge/main/splines/inst/csapi.m]
cubic spline interpolation
fnder
[octave-forge/main/splines/inst/fnder.m]
differentiate the spline in pp-form
fnplt
[octave-forge/main/splines/inst/fnplt.m]
plots spline
fnval
[octave-forge/main/splines/inst/fnval.m]
or r = fnval(x,pp) Compute the value of the piece-wise polynomial pp at points x.