clear all
clc
close all

sigma = [0.5 1.0 2.0 2.5 3.0 3.5 4.0 5.0 10];
rho = [2.9 1.9 1.4 1.3 1.2 1.2 1.15 1.0 1.03];

plot(sigma,rho,'or')
hold on
plot(sigma,rho)

plot(rho,sigma)