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33 lines
769 B
FortranFixed
33 lines
769 B
FortranFixed
19 years ago
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DOUBLE PRECISION FUNCTION ZCRNRMI(TRANS,M,N,DESCRA,A,IA1,IA2,
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& INFOA,IERROR)
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IMPLICIT NONE
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C .. Scalar Arguments ..
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INTEGER M,N, IERROR
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CHARACTER TRANS
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C .. Array Arguments ..
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INTEGER IA1(*),IA2(*),INFOA(*)
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CHARACTER DESCRA*11
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COMPLEX*16 A(*)
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C .. Local scalars ..
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INTEGER I, J
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DOUBLE PRECISION NRMI, SUM
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NRMI = 0.D0
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DO I = 1, M
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SUM = 0.D0
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DO J = IA2(I), IA2(I+1)-1
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C
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C .. definition coerent abs
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C
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C SUM = SUM + ABS(A(J))
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C
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C .. essl_way abs
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C
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SUM = SUM + ABS(DBLE(A(J))) + ABS(AIMAG(A(J)))
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ENDDO
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NRMI = MAX(NRMI, SUM)
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ENDDO
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ZCRNRMI = NRMI
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END
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