On Wed, Oct 31, 2012 at 5:12 PM, Gregory Woodhouse
<[email protected]> wrote:
> I've been thinking about whether how to implement matrices in Racket. One
> obvious option is just to use a vector
Oh! That's related to something I was coding up called "multidim" to
do multi-dimensional matrices. Here is the source:
https://github.com/dyoo/multidim
I was going to ask the list for a code review to figure out what a
nice API would be. No documentation yet, but does have test cases.
> ;;a matrix with data stored in the vector data
> (struct matrix (rows cols [data #:mutable]))
If we're going to use a single mutable vector for data, then we don't
need to mark the field itself as #:mutable. We'd need it if we were
to use set-matrix-data!, but I don't think you're doing that, right?
> Is there a preferred way of doing this sort of thing?
I'm not sure. I think it really depends on the application. If we
need persistent structures, then probably something like Jay's matrix
package might be helpful:
http://planet.racket-lang.org/display.ss?package=matrix.plt&owner=jaymccarthy
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