Boolen logic operations between integer numbers

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

Answer 1

[Alexandra Harkai]

>> logical(3)

ans =

     1

>> logical(-4)

ans =

     1

So 1 && 1 = 1, according to the numeric-to-logical documentation.

[Guillaume]

To add to this, only 0 is considered false by matlab (and many many other languages)

[Josh Shamir]

Thank you Alexandra Harkai and Guillaume for the valuable help.