The shape here is denoted as #column x #row. And the solution is underdetermined (more unknown than equations) when N > 3, that is exactly the reason for metamerism.
#column x #row
Matrix sizes seem to be flipped to me:
RGB: 3 x 1 M_SML: 3 x N M_RGB: N x 3 s: N x 1
The shape here is denoted as
#column x #row
. And the solution is underdetermined (more unknown than equations) when N > 3, that is exactly the reason for metamerism.Matrix sizes seem to be flipped to me:
RGB: 3 x 1 M_SML: 3 x N M_RGB: N x 3 s: N x 1