From: nate (nate_at_[hidden])
Date: 2007-07-11 14:53:07
> what is the best way to construct a diagonal matrix from a vector (where the
> vector should be the diagonal).
Take a look here.
This is my initial attempt at a diagonal adaptor for vectors.
Since there aren't any special dispatch mechanisms for this type things are
probably going to be slower
than necessary. For example
probably won't be as fast as just scaling each column. Maybe someone else can
say more about this.
As I said before, I'm no expert. There may already be a better way to do this
implemented in the