Array indices must be positive integers or logical values.

Why do I get this error?

>> x=linspace(0,10,1000)';

>> y1(x)=cos(x).^2.*exp(-0.4.*x)

Array indices must be positive integers or logical values.

Answer 1

[KSSV]

x = linspace(0,10,1000)';
y1 =cos(x).^2.*exp(-0.4.*x) ; 

It is array operation...you don't need to index.

[Valter Ferletta]

thank you it works now

[KSSV]

In MATLAB indices should be positive integers. Indices cannot be zero, negative integers and fractions.

Thanks is accepting the answer.