HOW TO USE "INTERSECTION AND UNION" IN MATALB?

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sheeba
sheeba on 26 Sep 2013
Commented: Jan on 26 Sep 2013
I HAVE THE CODE N= B union C+|B intersection C|, ->modulus.. please help me... how to use this in matlab..
  2 Comments
Roger Stafford
Roger Stafford on 26 Sep 2013
I suggest you read these two Mathworks' websites carefully:
http://www.mathworks.com/help/matlab/ref/union.html
http://www.mathworks.com/help/matlab/ref/intersect.html
Jan
Jan on 26 Sep 2013
Edited: Jan on 26 Sep 2013
It depends on the types of B, C and D, and the definition of "+" and "modulus" in your case. Is this group theory or are you talking of simple vectors? Is "+" the joining or the addition?
Without clean definitions of the data and operators asking for a conversion to Matlab is not meaningful. Example: How to program the BlöderNasenmann operator to Matlab when it is applied to Quabla Fabla? Although the meaning is clear to me, no reader can have a reliable idea what I'm talking of.

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Answers (1)

ES
ES on 26 Sep 2013
N=union (B,C)+abs(intersect(B,C)) Take a lot of care about matrix dimensions. The intersection matrix is smaller or equal in size as of the two input matrices. Similarly, the union matrix is bigger or equal in size as of the two input matrices. Zero pad or make necessary changes to accommodate size differences.

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