Hi there, first of all I want to let You that... QCustomPlot is going to save my life, literally !

Anyway, before to consider myself completely safe, I need just one more help: this time by the community.

I'm working on a simple tool, used to visualize fuzzy membership functions. Suppose you have something like this...

f(x) = 0 if x < a

f(x) = [(x - a) / (m - a)] if a < x <= m

f(x) = [(b - x) / (b - m)] if m < x < b

f(x) = 0 if x >= b

that describes the triangular membership function.

What I need to do is, given some values of a, x, m, b, to plot f(x).

Any suggestions on how to this ?

Thank you in advance.