#calculation rag

[art-of-mathematics]

That stim toy is also a 'calculation rag' for some binary number stuff...

Everything can be used as a calculator...

... plus, this 'calculator rag' feels nice!

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... You can even turn it around and have a kind of invert thing.

hmm.. I wonder what sort of useless things I come up with as I add some transformation concepts in this calculator rag thingy.

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This stim toy might be a nice tool for explaining some binary number system stuff and arithmetics to people/children in a more playful, interactive and enjoyable way.

[art-of-mathematics]

Looks like a toy for playing around with some knot theory stuff

The numbers can be re-attached via velcro patches.

One can use the threads/shoelaces for playing with some weaving patterns. Additionally one can use the slilicone pop-up dots as a binary/boolean indicator, which might be a good helpful tool.

Due to material reasons this thing only has 9 columns. The number 0 might get a different place or calculation mechanism.

I also still do not really know how I really want to use this strange thing.

...

A well-working flap:

And a (useless) information for free:

[ Source: lisburnmuseum.com ]

[art-of-mathematics]

You might have heard of the calculation rag (or calculation rag 2.0), but have you heard of its transcended form - the calculation cylinder sack with additional randomness functions?

Okay, this is getting extremely silly.

For the calculation cylinder sack:

Insert some marbles into the sack/bag and your calculations will always be random if you shake it. It is perfect for research on stochastic processes, at least I suppose - but I am not certain. (n-fold puns intended)