I recently saw that the sine function could be approximated greatly by [1-(((2/pi)*x)-1)^2]^(pi/e) for(adsbygoogle = window.adsbygoogle || []).push({});

the range (0,pi) does anyone have any other strange functions like this that may satisfy some of the other transcendentals? (It'd be nice to find out how to derive the above formula too)

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# A function similar to Sine

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