Create a matrix that contains sine wave

Define a 5xN matrix such that each row of the matrix contains a sine wave with a frequency equal to the row number. (0 < t < 1).

I am doing the matrix of zeros thingie but it keeps telling me an error

t=0:0.001:1; x=zeros(5,length(t)); for i=1:length(t) x(i)=sin(2.*pi.*i.*t) end

can any body help ?

Answer 1

[Erivelton Gualter]

Try this:

t=0:0.001:1; 
x=zeros(5,length(t)); 

for fi=1:5
    for i=1:length(t) 
        x(fi,i)=sin(2*pi*fi*t(i)); 
    end
end

[madhan ravi]

+1 vote crystal clear @Erivelton

Answer 2

[Akira Agata]

You can avoid for-loop by simply:

t = 0:0.001:1;
f = 1:5;
x = sin(2*pi*f'*t);