BVP Error, help with explaination (2024)

Error in solution>bvp (line 8)
sol = bvp4c(@ode, @bcfun, sol_init);

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bvp()

function bvp

A_array = [5e-1,3e-1,2e-1,1.5e-1,1e-1,0.9e-1,0.8e-1,0.7e-1,0.6e-1,0.55e-1,0.5e-1];

B = 1;

xmesh = linspace(0, 1, 100);

sol_init = bvpinit(xmesh, [0 B]);

hold on

for i = 1:numel(A_array)

A = A_array(i);

sol = bvp4c(@ode, @bcfun, sol_init);

plot(sol.x,sol.y(1,:))

init = @(x)interp1(sol.x.',sol.y.',x);

sol_init = bvpinit(sol.x,init);

end

format long

sol.x

hold off

grid on

function dydx = ode(x, y)

dydx(1) = y(2);

dydx(2) = exp(y(1)*log(10)/A);

%disp(y(1))

end

% Define the boundary conditions

function res = bcfun(ya, yb)

res(1) = ya(1) - B;

res(2) = yb(1);

end

end