Re: comments on Matrix

On Wed, Mar 20, 2013 at 4:47 PM, Tab Atkins Jr. <jackalmage@gmail.com>wrote:

> On Wed, Mar 20, 2013 at 4:44 PM, Rik Cabanier <cabanier@gmail.com> wrote:
> > Maybe the 2D'ness of a matrix can be implied by its construction and if
> you
> > apply 2d or 3d matrices or operations to it?
>
> I suspect this would be reasonable.  You'd check for explicit 0s in
> the correct indexes at construction time, and then carry around a flag
> for whether it's 2d or not, which gets unset as soon as you perform a
> 3d operation.
>

If we start carrying around internal state based on operations that have
happened on the objects values won't round-trip and two matrices with
identical values will return different answers, which I think will be very
surprising for users.

- James


>
> ~TJ
>
>