[Octave-bug-tracker] [bug #31871] interp1 gives the wrong result for cubic interpolation

[Ben Abbott]

Follow-up Comment #2, bug #31871 (project octave):

We could do that. Would it make sense to fix the current method and use it
for "v5cubic"?

I haven't gotten the details figured out, but it looks to me like only the
3rd order terms are wrong. Meaning for ...

    y = a*x.^3 + b*x.^2 + c*x + d

Is it the solution for "a" that has the bug.



    _______________________________________________________

Reply to this item at:

  <http://savannah.gnu.org/bugs/?31871>

_______________________________________________
  Message sent via/by Savannah
  http://savannah.gnu.org/