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

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shane watson
shane watson 2017-2-20
评论： shane watson 2017-2-23
I want to compare three logics should I used && or or any other way to do that ?????
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Adam
Adam 2017-2-23
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Jan
Jan 2017-2-20
编辑：Jan 2017-2-20
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!
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shane watson
shane watson 2017-2-23
编辑：shane watson 2017-2-23
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 &&||

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