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Why am I getting an error on this?

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Ali Almakhmari
Ali Almakhmari 2022-12-14
编辑： Torsten 2022-12-14
Why am I getting an error that says "Not enough input arguments."
function dydx = funct(x, y, z)
a = 1;
b = 2;
c = 3;
dydx = a*y + b*z + c*x;
end
y0 = 1;
z0 = 2;
[x, y] = ode45(@funct, [0, 10], [y0, z0]);
plot(x, y);
  2 个评论
Bora Eryilmaz
Bora Eryilmaz 2022-12-14
func() takes 3 scalar arguments (x, y, z), but you are passing a single vector argument ([y0, z0], etc.) to it.
Torsten
Torsten 2022-12-14
编辑：Torsten 2022-12-14
If you want to solve for two unknown functions (y and z), you need two differential equations, not only one.

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