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The output of function Ifpack_AnalyzeMatrixElements() applied to matrix fidap019.rua is as reported below.

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Label of matrix = Epetra::CrsMatrix
Elements in [-1.361693e+07, -9.502017e+06) = 48 ( = 0.02 %)
Elements in [-9.502017e+06, -5.387105e+06) = 220 ( = 0.08 %)
Elements in [-5.387105e+06, -1.272193e+06) = 2396 ( = 0.92 %)
Elements in [-1.272193e+06, +2.842719e+06) = 255985 ( = 98.51 %)
Elements in [+2.842719e+06, +6.957631e+06) = 939 ( = 0.36 %)
Elements in [+6.957631e+06, +1.107254e+07) = 149 ( = 0.06 %)
Elements in [+1.107254e+07, +1.518745e+07) = 69 ( = 0.03 %)
Elements in [+1.518745e+07, +1.930237e+07) = 36 ( = 0.01 %)
Elements in [+1.930237e+07, +2.341728e+07) = 15 ( = 0.01 %)
Elements in [+2.341728e+07, +2.753219e+07) = 5 ( = 0.00 %)
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