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

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));

Answer 1

[Star Strider]

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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[Nico A]

Oh thank u so much, it works

[Star Strider]

My pleasure!

If my Answer helped you solve your problem, please Accept it!

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