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A comment on Show HN: Axis - a React.js multiplayer math game. Parent comment

Re:Show HN: Axis - a React.js multiplayer math game by madez on Wednesday November 19, 2014 @11:59AM (#8631129)
(x+1) * max(0, sign(x)) * (1-max(0, sign(x-1/sqrt(2)))) + (1+1/sqrt(2)) * (1-max(0, sign(x-1/sqrt(2)-1))) * max(0, sign(x-1/sqrt(2))) + (-x+sqrt(2)+2) * max(0, sign(x-1/sqrt(2)-1)) * (1-max(0, sign(x-sqrt(2)-1)))
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