Settle down Bill. Haven't you heard? Some Japanese scientist discovered we live in a 2D world. Yep, it's a matrix projection that emulates a 3D environment, but that should make asking for a 2D curve fitting program, what, more fitting?
The closest I could get...
SHELL _HIDE _DONTWAIT "firefox
https://i.stack.imgur.com/JCvyw.gif"
Pete
