LaTeX.org

Thank you for your welcome and your solution, which works :-)

Meanwhile, I have stumbled across the name path= option under the intersections library.

The operational lines from my file are:

%
% Draw the two Gaussians using gnuplot
% Note that pi is known as is exponentiation via **
%
% sigma ...

Perhaps I am asking too much, but TikZ-PGF such a good package that I thought I should ask anyway.

I am using gnuplot to plot two Gaussian functions and need to find their point of intersection to shade the region enclosed by both curves.

Is there a way to do this in TikZ-PGF or should I resort to ...

Perhaps the solution at {TeX} SE might give you the solution you seek.

Also, section "78.6 Extracting Coordinates" p 724 of the latest PGF manual.

I was after the same thing and came across your post.

Sorry this answer is more than a year late!