matrix balance and condition number of sparse matrix
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I don't know how it possible!!
[S,P,At] = balance(Af) %(I have run this command in my code)
%After code running was finished
[S,P,B] = balance(Af) %(saved Af)
nonzeros(B-At)
ans =
Empty matrix: 0-by-1
>> condest(B)
ans =
3.2001e+19
>> condest(At)
ans =
4.2068e+21 !!!
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on 2 Jul 2014
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