How to check a value in a loop at a certain instance?
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I want to know what the value of u and v are when t = 7. Does anyone know how I'd do that?
close all;
clear all;
a = 0;
b = 20;
nel = 200; % number of elements
h = (b-a)/nel; % step size
nv = nel+1;% number of vertices
x = a:h:b; % mesh
dt = 0.001; % time steps
tend = 20;
e=ones(nv, 1);
%Discretization of the Laplace operator
Delta=1/(h^2)*spdiags([e -2*e e], -1:1, nv, nv);
Delta(1,2) = 2/h^2;
Delta(end,end-1) = -2/h^2;
% parameters of the model
eps = 0.01;
alpha = 0.1; %0.22 - max
beta = 0.2; % determines the width of the pulse
gamma = 0.25 * beta; % determines the shape of the pulse
D =2;
% Max D = 8;
% Min D = 1.7;
% initial guess
u = 0.5 * (x < 3);
v = 0 * x;
counter = 1;
% explicit Euler scheme
g=dt:dt:tend;
for t=dt:dt:tend
u = u + dt * eps* (D*((Delta * u')')) + dt/eps * (u .* (1 -u ).*(u-alpha) - v);
v = v + dt * (gamma * u - beta * v);
end
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답변 (1개)
Cris LaPierre
2018년 11월 28일
Set a conditional breakpoint inside the loop set equal to when t==7
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Cris LaPierre
2018년 11월 28일
And since that link doesn't say how to do it, rt click on the line number you want to add the break to and select "Set Conditional Breakpoint..."
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