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Doubt on fft function

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Pooja
Pooja on 7 Feb 2013
Closed: MATLAB Answer Bot on 20 Aug 2021
x=[1 2 6] x=fft(x) x =
9.0000 -3.0000 + 3.4641i -3.0000 - 3.4641i
x=x>-3
x= 1 0 0.
why this is coming as binary ?can this idea could be used as a binary coder? Expecting your kind reply.Thank you.

Answers (1)

Walter Roberson
Walter Roberson on 7 Feb 2013
It isn't coming out as binary: it is coming out as logical, as you have assigned the result of the comparison to the variable "x".
If you are trying to extract the elements that are greater than -3 then
x(x>-3)
Please be careful about using comparison operations with complex data.
  2 Comments
Pooja
Pooja on 7 Feb 2013
Edited: Pooja on 7 Feb 2013
Sir,from where we get solutions to these type of problems.From any matlab books?
Image Analyst
Image Analyst on 7 Feb 2013
There's a very nice list of "Answers" that you'll want to review here: http://www.mathworks.com/matlabcentral/answers/?search_submit=answers&query=tag%3Atutorial&term=tag%3Atutorial, particularly this one.

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