23 Jan
2011
23 Jan
'11
3:17 p.m.
On Sun, 23 Jan 2011, Claude Heiland-Allen wrote:
essentially, it creates a matrix of 1d splines, but now I see that this isn't what you wanted...
for interpolated 2d matrix lookup, something like this, perhaps:
Interpolated matrix or vector lookup can of course be written as interpolation of sub-matrices or sub-vectors. For lazy matrices and vectors this would be almost as efficient. interp i v = vectorIndex (floor i) $ interpolateVectorSpace (fraction i) (Vector.take (n-3) $ Vector.drop 0 v) (Vector.take (n-3) $ Vector.drop 1 v) (Vector.take (n-3) $ Vector.drop 2 v) (Vector.take (n-3) $ Vector.drop 3 v) (Sorry for the many fictional functions.)