conditional statements and while loop

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msh
msh 2014-11-24
评论： msh 2014-11-24
Hi,
I have the following while loop
while (dif1 > tol) && (dif2 > tol) && (dif3 > tol)
procedure
end
I want all the conditions to be simultaneously satisfied. However, when I execute the code, the second condition dif2 > tol is not satisfied although the algorithm stops.
what I am doing wrong here ?
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msh
msh 2014-11-24
编辑：msh 2014-11-24
I see. Then this is not what I want. I need ALL conditions to be satisfied in the same time. That is, I need the loop to go on, until ALL three are false. How I should modify the conditions then?
Star Strider
Star Strider 2014-11-24
The double operands ‘&&’ and ‘| |’ ‘short circuit’ the comparisons. See: Logical Operators: Short-Circuit && | |. If the first is false, it will not evaluate any of the others.

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Adam
Adam 2014-11-24
while (dif1 > tol) || (dif2 > tol) || (dif3 > tol)
should work if you want to carry on until all are false.

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