difference between | and || in my function

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sri satya ravi
sri satya ravi 2017-1-11
编辑： Stephen23 2017-1-12
Hi ;
I have a code in which
function metCondition = Ambient_Temperature(vector)
metCondition = true; % Initialize
if any((vector) <= -7 | (vector) >= 37.86) %degC
metCondition = false;
end
what is the difference between
if any((vector) <= -7 | (vector) >= 37.86) %degC
and
if any((vector) <= -7 || (vector) >= 37.86) %degC
and why am i getting an error when using ||.
Thanks

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采纳的回答

James Tursa
James Tursa 2017-1-11
编辑：Stephen23 2017-1-12
The "|" operator is an element-wise operator, intended to be used on arrays element-by-element. The "||" operator is a short-circuiting operator restricted to be used on scalars only. See the doc:
https://www.mathworks.com/help/matlab/logical-operations.html
https://www.mathworks.com/help/matlab/ref/logicaloperatorsshortcircuit.html
For your case, you clearly want the | operator.

更多回答（1 个）

Walter Roberson
Walter Roberson 2017-1-11
You could use
if any((vector) <= -7) || any((vector) >= 37.86) %degC
|| can only be used when both sides return scalars. || is the "short circuit" OR operator -- it does not bother evaluating the right hand side of the left hand side is already true.

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