Change steepness of an inverse exponential curve…

Aug 24, 2013 at 10:41am

Change steepness of an inverse exponential curve…

Hi all,

I’m trying to change the steepness of an inverse exponential curve, whilst keeping (0,1) and (1,0) as fixed points, by changing the variables in the formula y = (a/(x+b))-b. Two examples of correct curves would be a=1, b=~0.618, and a=2, b=1. I need to know how to find b in terms of a, so that I can adjust the curve dynamically with a single input.

Could somebody please help me with this?

Thanks a lot!

Yeter

#259894
Aug 24, 2013 at 2:36pm

oops, just saw which subforum we’re in.

#259903
Aug 24, 2013 at 7:01pm

Try a=b*(b+1); the user could enter b, and you could calculate a with that formula. The closer b gets to 0, the more extreme the curve.

#259910
Aug 25, 2013 at 1:25am

Perfect! Thank you.

#259926

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