[Gnuplot-info] Generate data with gnuplot for curve fit?

[Kevin <kel...@am...>]

Hello All

I would like to generate data for a curve fit within gnuplot. something like 
this:

y=f1(x)

where f1(x) is a known function.  I would then like to define a curve fit 
function


f2(x) = a*x*x+b*x+c

and fit it to the x, y data and I define above.  

fit f2(x) x,y via a, b, c

Is there a way to do this withing gnuplot?  It seems that I would need to 
define an array of x values for f1 and I could find anything in the manual.

Thanks
Kevin