Piecewise polynomial details
[breaks,coefs,l,k,d] = unmkpp(pp)
[breaks,coefs,l,k,d] = unmkpp(pp) extracts, from the piecewise polynomial pp, its breaks breaks, coefficients coefs, number of pieces l, order k, and dimension d of its target. Create pp using spline or the spline utility mkpp.
This example creates a description of the quadratic polynomial
as a piecewise polynomial pp, then extracts the details of that description.
pp = mkpp([-8 -4],[-1/4 1 0]); [breaks,coefs,l,k,d] = unmkpp(pp) breaks = -8 -4 coefs = -0.2500 1.0000 0 l = 1 k = 3 d = 1