Tutorial:


AstroImageJ, Align and Drizzle
5: DeterminantDeterminant is another mathematical tool we need to find out the X^{1} that we need to calculate T. You can always test if a matrix has an inverse, that's when the determinant is not zero. det(T) = not equal zero In the computer world we don't have infinite number to work with, not resolution enough, we get rounding errors. So if the determinant have a very small value it's the same as it probably will not have an inverse. More information about determinant: Coming more later.

