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Modulo lens #288

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AlexKnauth opened this issue Sep 15, 2016 · 3 comments · May be fixed by #289
Open

Modulo lens #288

AlexKnauth opened this issue Sep 15, 2016 · 3 comments · May be fixed by #289
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@AlexKnauth

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@AlexKnauth
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Something like:

> (lens-view (modulo-lens 10) 16)
6
> (lens-set (modulo-lens 10) 16 9)
19
@jackfirth
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Ou, that's neat

@jackfirth
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Seems like something that should go in a library of math-specific lenses

@AlexKnauth
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AlexKnauth commented Sep 16, 2016 •
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I was thinking something like lens/data/number, in the lens-data package. (Edit: that would be where this would go if/when it's moved out of unstable)

@AlexKnauth AlexKnauth linked a pull request Sep 17, 2016 that will close this issue
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add add-lens, subtract-lens, and modulo-lens AlexKnauth/lens
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@AlexKnauth @jackfirth