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fix scaling (Reference-LAPACK PR 830)

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Martin Kroeker 2023-05-24 16:52:56 +02:00 committed by GitHub
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commit 912bfd9bfb
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lapack-netlib/SRC/stgsna.f
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@ -632,8 +632,8 @@
C1 = TWO*( ALPHAR*ALPHAR+ALPHAI*ALPHAI+BETA*BETA )
C2 = FOUR*BETA*BETA*ALPHAI*ALPHAI
ROOT1 = C1 + SQRT( C1*C1-4.0*C2 )
ROOT2 = C2 / ROOT1
ROOT1 = ROOT1 / TWO
ROOT2 = C2 / ROOT1
COND = MIN( SQRT( ROOT1 ), SQRT( ROOT2 ) )
END IF
*