I'm really not good at this. "Array indices must be positive integers or logical values." What is wrong?

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Nico A
Nico A 2023-1-23
评论： Star Strider 2023-1-23
n1=-10:-1;
n2=0:10;
n=[n1 n2];
u1=ones(size(n2));
u2=zeros(size(n1));
u=[u1 u2];
h1=abs(-1-3)*(u(-1)-u(-1-6));

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Star Strider
Star Strider 2023-1-23
Ran in:
I suspect you want to define ‘u’ as a unit step function. This does that (and solves the ‘u’ error) however it gives a likely undesired result.
n1=-10:-1;
n2=0:10;
n=[n1 n2];
u = @(t) t>0; % Simple Unit Step Function
u1=u(n2);
u2=u(n1);
uv=u([u1 u2]);
h1=abs(-1-3).*(u(-1)-u(-1-6))
h1 = 0
.

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