point values from the curve

i have a discontinuous 2d signal.By using the spline curve i made this continuous.My problem is how do i get the equation for all dicontinuous parts or the main objective is how do I get point values from the curve(discontinuous part)?

Answer 1

[Sarah Wait Zaranek]

If you want to get points from a spline curve - I would suggest using ppval

x = 1:10; 
y = cos(x);
pp = spline(x,y);
valY = ppval(pp,1)

If you want the piecewise equations, unmkpp will help you out:

[breaks,coefs,l,k,d] = unmkpp(pp)

This is assuming you are using spline in core MALTAB. Let me know if you are using another spline method (in a toolbox).