In the words of the Petshop Boys, It's A Sin(e wave) I think sin(value * pi / 2) should give you the range you want.
On 19 Mar 2010, at 19:14, Dan Winckler wrote: > Hi folks, > > What do you call a curve like the one in the attached image? Rather, what's > the mathematical term for the equation that produces such a double curve. I > am trying to scale an incoming float number (0.0 – 1.0) so that it changes > more quickly in the middle of the range (~0.2 - 0.8) than at the top and > bottom (~ 0.0 - 0.2, 0.8 - 1.0). Right now I've got exponential scaling, > which works for the bottom of the range but not the top. > > I place full blame for my lack of knowledge on the American educational > system. (Well, maybe a little bit of the blame falls on my shoulders for > only taking one CS class in college.) Regardless, is there a mathemagician > among you who can pass this quiz? > > thanks, > dan > > > > <Screen shot 2010-03-19 at 2.30.55 PM.png> > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/bangnoise%40gmail.com > > This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
