As if the world needed another trigonometric function, I give it the WM function, named after the letters apparent in its graph. It is the sine of the sine of x, times 2π, if x is measured in radians, as in the graph below.
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RobertLovesPi.net 
Really cool! I think I would prefer to write the function as f(x) = sin(2πsin(x)). You certainly have a winner here!
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Thank you! Also, I agree; your statement of the equation is more clear.
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Cool. 🙂
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When I woke up this morning I was thinking about this function. I couldn’t quite remember if it was the WM function or the MW function. Obviously one is the negative of the other. Sometimes the name William is abbreviated as Wm, so now I will remember how positive WM (or William) is!
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