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HEAD
gfortran fix for cluster/wham/src build
[unres.git]
/
source
/
unres
/
src_CSA
/
arcos.f
1
FUNCTION ARCOS(X)
2
implicit real*8 (a-h,o-z)
3
include 'COMMON.GEO'
4
IF (DABS(X).LT.1.0D0) GOTO 1
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ARCOS=0.5D0*(PI+DSIGN(1.0D0,X)*PI)
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RETURN
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1 ARCOS=DACOS(X)
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RETURN
9
END