What is the confusion? Use eye(n) if you want a dense identity matrix. Use I if you want something that acts like an identity element. Use Diagonal(ones(n)) if you want a diagonal identity matrix. I see no reason at all why eye should be changed.
On Monday, August 29, 2016 at 4:32:34 PM UTC+2, Chris Rackauckas wrote: > > But you don't want a sparse matrix. It would not be an efficient way to > actually use it since sparse matrices have a bit of overhead due to their > table structure. Even better would be a Diagonal since it's just an array > with dispatches to act like a diagonal matrix. But best would be to use the > UniformScaling operator `I` which acts like eye in cases like A-λI but > isn't actually saving a matrix and doesn't actually require iterating over > two arrays at once. I think that amount of confusion in this thread is a > good indicator that eye should be changed. > > On Monday, August 29, 2016 at 7:25:49 AM UTC-7, Kristoffer Carlsson wrote: >> >> You mean a sparse matrix? > >
