/sci/ - Science & Math

cheers lads, brainlet here.

How do i generate a curve that looks rather like a negative parabola, but curved on the edges more like an exponential curve (just like the shape of a normal curve)? I just need one that returns small values close to 0 and 25, and large values near 12.5. I know a parabola does what i'm suggesting, but i want the output curve to be more bell-shaped. Sorry i only took maths to calc 2 so I'm not too bright.