On 25/12/2024 22:51, B. Gimeno wrote:
> 
> Hello, first of all, I would like to congratulate everyone on the arrival of the
> coming year, my best wishes and at least I hope you are in good health.
> 
> 
> It's been years since I was curious enough to use pov-ray, but recently
> something happened. I came across a video from the Numberphile Channel on
> YouTube where the doctor of mathematics James Grime shows us his method to find
> out when a number is divisible by 7.
> 
> https://youtu.be/Ki-M1DJIZsk?si=IucytG0UMg6X9iKD
> 
> Apart from being a curious method, it made me wonder what that circle (used in
> modular arithmetic) would look like for any other number, to see what kind of
> patterns could emerge. Doing it manually on paper for small numbers motivated me
> to sit down one afternoon in front of the computer and find out with pov-ray
> that simple method to do it with any number n. (You never know when you'll need
> to know if a number is divisible by 1973).
> 
> I've uploaded three tests at different frame rates with audio provided by
> youtube.
> 
> https://youtu.be/bKIqIj9Hwg0 - 20fps 1:31
> 
> https://youtu.be/ffdxRK0nP_4 - 25fps 1:12
> 
> https://youtu.be/FIiVqwm-8es  - 30fps 1:01
> 
> In a few days I'll publish the code with a few modifications.
> 
> Regards.
> B. Gimeno
> 

Ho yes, the multiplication tables...
<http://louisbel.free.fr/galerie/gal14.shtml>

;)



-- 
kurtz le pirate
compagnie de la banquise

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