Recent content by Mike_Li

Sorry Slider142 - got carried away and forgot to say why cofactors don't work quite as simply as you suggest here... When you form the cofactor by eliminating a row/column, some of the resulting matricies are not triangular any more - which means the determinant needs to be found of a full...

Hi, A really neat way - and outside of MatLab a really fast way - of solving the inverse of a matrix is to recognise that any matrix, times it's inverse, = the identity matrix. Which means that when you have a decomposition of any variety - L - then you find the inverse of L to begin with...

For those of you, like me, that just want the answer... here it is (Slider142, please read the item at the bottom re: cofactors and why that doesn't work in this case, sorry): My full problem was as follows: Given a set of observations and a fixed start-point - in this case acoustic...