Circular convolution with single element array showing error

2019 1 22
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更新时间：2019 1 22
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Hi ,
When I try to do circular convolution of two vectors,it shows error when one of the vectors is single element.
How do I rectify the problem? The error message is shown below:
>> s=[1];
>> q=[1 2];
>> res=cconv(s,q)
Error
Error using .* Matrix dimensions must agree.
Error in cconv (line 46)
c = ifft(fft(datawrap(a,N),N).*fft(datawrap(b,N),N));

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