basic plotting need help

Question

Caner Bulduk 2015-5-2

回答： Ahmet Cecen 2015-5-3

i have a function;

H = (wo*w)/sqrt(w*w*wo*wo + Q^2*wo^4 + Q^2*w^4-2*Q^2*w^2*wo^2

where;

Q=20;
wo=[7596.4    8394.3];

i create a function for that

function [output]=H(w,wo,Q)
output =(wo*w)/sqrt(w*w*wo*wo + Q^2*wo^4 + Q^2*w^4-2*Q^2*w^2*wo^2);
end

when i try to use function for calculate some values

"Subscript indices must either be real positive integers or logicals."

i got this.

How can i plot this function and whats the mean of that error?

Thanks a lot for your help

Answer 1

Ahmet Cecen 2015-5-3

This might not be your only problem, but if o0 is a row vector as you wrote there, you have:

w*w*wo*wo

as a term, where wo*wo is undefined as a vector operation, and also

+ Q^2*wo^4

wo to the power 4 is undefined similarly.