Hi, I would like to see the stats, like the number of iterations. I have 'Stats' 'on' but doesn't show anything.
Thanks for your help.
clc, clear, close all
lambda = 1;
fun = @(alpha)cosh(alpha)-4/sqrt(2*lambda)*alpha;
alpha = fzero(fun,1);
fun_exacta = @(x) 2*log(cosh(alpha)./cosh(alpha*(1-2*x)));
x = linspace(0,1);
y_exacta = fun_exacta(x);
figure(1), hold on
p3 = plot(x,y_exacta,'r','LineWidth',1.2);
x = linspace(0,1,5);
upr = @(t,u) [u(2) ; -lambda*exp(u(1))];
condcon = @(ua,ub) [ua(1)-0 ; ub(1)-0];
solinit = bvpinit(x,[0;0]);
options = bvpset('RelTol',1e-5,'Stats','on')
options = struct with fields:
AbsTol: [] RelTol: 1.0000e-05 SingularTerm: [] FJacobian: [] BCJacobian: [] Stats: 'on' Nmax: [] Vectorized: []
sol = bvp4c(upr,condcon,solinit)
sol = struct with fields:
solver: 'bvp4c' x: [0 0.2500 0.5000 0.7500 1] y: [2×5 double] yp: [2×5 double] stats: [1×1 struct]
x = linspace(0,1);
u = deval(sol,x,1);
p1 = plot(sol.x,sol.y(1,:),'b','LineWidth',1.2);
p2 = plot(x,u,'k--','LineWidth',1.2);
legend([p1 p2 p3],'Solución','deval','Exacta')

Réponses (1)

Image Analyst
Image Analyst le 4 Sep 2021

0 votes

Try adding more points to your x, like
numPoints = 1000;
x = linspace(0,1, numPoints);

Catégories

En savoir plus sur Optimization dans Centre d'aide et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by