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how to create matrix iteration

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Light
Light 2013-6-7
Give me structure please
A=[-1,1,1;0,-1,0;0,0,-1;1,0,0]
iteration command??
some operation
if whole matrix not 0, it will be iterated again
or if whole matrix 0 stop
how can i iterate it

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回答（1 个）

Hugo
Hugo 2013-6-7
You can use while as follows
while any(A)
end
any(A) assumes first that all values of A can be converted to type logical. This conversion turns any number different from zero into 1. Then, if there is any element of A that is 1, then any(A)=1 and the iteration continues.
Is this what you want?
Best regards

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