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pdbread-mult
[unres.git]
/
source
/
unres
/
src-HCD-5D
/
arcos.f
1
double precision FUNCTION ARCOS(X)
2
implicit none
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double precision x
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include 'COMMON.GEO'
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IF (DABS(X).LT.1.0D0) GOTO 1
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ARCOS=PIPOL*(1.0d0-DSIGN(1.0D0,X))
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RETURN
8
1 ARCOS=DACOS(X)
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RETURN
10
END