generate 100-element row in matlab

Hello,

Can anyone help me with generating this signal s(n)=cos(0.04*pi*n) with 100 element row in matlab

[Adam Danz]

What have you tried so far? Sounds like you need to use linspace.

Answer 1

[Pratyush Swain]

Hey,

I believe you need to store the values of the function in a vector of 100 elements;

%create evenly spaced input values%
n=linspace(0,50,100);
%s is the vector which shall contain the output values%
s=zeros(1,100);

%calculate and store function values%
for i=1:length(n)
    s(i)=cos(0.04*pi*n(i));
end

%plot to realise them%
figure;
plot(n,s);

Hope this helps.

[Adam Danz]

In this case, vectorization would be more efficient and readable.

n = linspace(0,50,100);
s = cos(0.04*pi*n);
plot(n,s)