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WMUL.FOR
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1991-04-13
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20 lines
SUBROUTINE WMUL (AR, AI, BR, BI, CR, CI)
IMPLICIT NONE
C
C C = A*B
C
DOUBLE PRECISION AR, AI, BR, BI, CR, CI
C
DOUBLE PRECISION T
C
DOUBLE PRECISION FLOP
C
C
T = AR*BI+AI*BR
IF (T.NE.0.0D0) T = FLOP (T)
CR = FLOP (AR*BR-AI*BI)
CI = T
C
RETURN
END