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Boolen logic operations between integer numbers

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Dear All,
I would like to know the reasons why this happens:
>> 3 && -4
ans =
1
Thanks in advance for your kindly support.
Best Regards,
Josh

Accepted Answer

Alexandra Harkai
Alexandra Harkai on 22 Nov 2016
Edited: Alexandra Harkai on 22 Nov 2016
>> logical(3)
ans =
1
>> logical(-4)
ans =
1
So 1 && 1 = 1, according to the numeric-to-logical documentation.
  2 Comments
Guillaume
Guillaume on 22 Nov 2016
To add to this, only 0 is considered false by matlab (and many many other languages)
Josh Shamir
Josh Shamir on 22 Nov 2016
Thank you Alexandra Harkai and Guillaume for the valuable help.

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