need to make a function of the the green graph represented by the list 'l1' found in the attached file. Any help or suggestion is much appreciated. Thanks
ff(x) = -0.5(x - 4floor((x + 2) / 4))² + 2
very neat solution ; needto know how you arrived at the solution . Thanks
hope to help :
(sorry, I don't speak very well english.)
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