On 7/17/2017 3:07 PM, Bald Eagle wrote:
> Modeling of folded paper pop-up cards:
> http://cs.smith.edu/~jorourke/DTS/Sum05/WebPages/Ana/Ana.htm
>
> (I'm envisioning a [set of] macro[s] to take a flat object and two planes and
> connect them so they fold properly)
>
>
> I was looking to see if anyone had already written any formulas or macros in SDL
> for dealing with matrices ... no luck so far, but I did find this:
>
> https://people.cornellcollege.edu/dsherman/visualize-matrix.html
>
>
Matrices pithed my brain almost 50 years ago. They do the same today. :)


-- 

Regards
     Stephen

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