error in dtft code of matlab

[sayurabh]

matlab dtft

tell me the error in following dtft matlab code
>> x=rand(1,11);
>> n=1:10;
>> k=0:500;
>>w=(pi/500).*k;
>> X=x*(exp(-j*pi/500)).^(n'*k);
??? Error using ==> *
Inner matrix dimensions must agree.

 

[artsil23]

matlab code for dtft

this is because the inner matrix dimensions are not agree:

x is 1x11 and (n'*k) is 10x501. you can arrange this if x is x=rand(1,10) or n=0:10.

with the first case:
x=rand(1,10);
n=1:10;
k=0:500;
w=(pi/500).*k;
X=x*(exp(-j*pi/500)).^(n'*k);

 

[sayurabh]

c code dtft

thanx buddy problem is solvd