Looking for a function

jedidia

shoemaker without legs
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I'm looking for a curve that's roughly shaped like this:
curve.jpg

Sigmoid alone won't do the trick because I need two bends in the same direction (and also lying on its side, but that part would probably be doable). I'm trying to concoct something together, but I suck at this stuff...
 

Urwumpe

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Wouldn't a combination of a linear function and a sine work there? Otherwise, if you just need to fit it to some data points, what about using a bezier curve?
 

macVsog

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maybe there are simpler 2D programs
 
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