Intersection of two plots

[nilshg]

see

Mark the Intersection Points on a Plot Graph

Some example code for computing the intersection of curves from discrete data points using polynomial fits. This code blocks creates some artificial data. using Polynomials, Plots # two functions that intersect on an interval (a,b) f1(x) = 2x + 12 f2(x) = x^2 (a,b) = (2,7) # the interval of interest n = 10 # number of data points ynoise = 0.3 # noise level, absolute # create some noisy data from those two functions x = range(a, b, length=n) y1 = f1.(x) + ynoise*randn(n) y2 …