I want to compare three logics should I used && or || or any other way to do that ?????

I want to compare three logics should I used && or or any other way to do that ?????

[Adam]

How do we know? It depends whether you want to compare them with an AND relationship or an OR relationship. Obviously the documentation will tell you this also.

[Jan]

The list of tags looks really strange.

[shane watson]

Jan why is it so???

[Adam]

Tags are meant to give useful keywords related to the problem so people with the right expertise can find them quickly.

[shane watson]

Ok, Adam Thanks for the guidance.

Answer 1

[Jan]

The | operator acts like or(), while || requires scalar arguments:

a = 1
b = 0
A = false(1, 4);
B = true(1, 4);

or(a, b)  % correct
a | b     % correct, but this is faster:
a || b    % correct and efficient
A || B    % fail
or(A, B)  % correct
A | B     % correct

The same for &&. The || and && operator apply a short-curcuiting: If the first operand determines the output alread like in 0&&1, the second is not evaluated. This matters, if the operands are functions:

str = 'asd';
if length(str > 3) && str(4) == 'f'  % Handles 'asd' correctly!

[shane watson]

Thank you, Jan Simon. I was confused in problem as you have mentioned in 2nd example that what if I have three comparisons instead of two i.e for example(str > 3) && str(4)==f and also any third one so again I have to use &&||