Too many output arguments
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My code below yields the error: Error using alpha
Too many output arguments.
I don't understand why. How can I fix this?
m = size(alpha,1);
if m == 1
alpha = alpha';
end
h = (b-a)/N; %the step size
t(1) = a;
w(:,1) = alpha; %initial conditions
for i = 1:N
k1 = h*f(t(i), w(:,i));
k2 = h*f(t(i)+h/2, w(:,i)+0.5*k1);
k3 = h*f(t(i)+h/2, w(:,i)+0.5*k2);
k4 = h*f(t(i)+h, w(:,i)+k3);
w(:,i+1) = w(:,i) + (k1 + 2*k2 + 2*k3 + k4)/6;
t(i+1) = a + i*h;
end
[t' w']
%function relating the right-hand side of the differential equation
%it has to be changed accordingly to the problem at hand
%in this case, the system of differential equations is:
%dy1/dt = y2
%dy2/dt = -y1 - 2exp(t) + 1
%dy3/dt = -y1 - exp(t) + 1
%change it before proceeding to the command line
function dy = f(t, y)
dy = [y(1) - y(2) + 2; -y(1) + y(2) + 4*t; 0];
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Answers (1)
Star Strider
on 16 May 2019
The solution is to rename your variable something else, perhaps ‘alfa’.
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