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[unres.git]
/
source
/
cluster
/
unres
/
src
/
arcos.f
diff --git
a/source/cluster/unres/src/arcos.f
b/source/cluster/unres/src/arcos.f
index
052a1e4
..
698f704
100644
(file)
--- a/
source/cluster/unres/src/arcos.f
+++ b/
source/cluster/unres/src/arcos.f
@@
-2,7
+2,7
@@
implicit real*8 (a-h,o-z)
include 'COMMON.GEO'
IF (DABS(X).LT.1.0D0) GOTO 1
- ARCOS=0.5D0*(PI+DSIGN(X,1.0D0)*PI)
+ ARCOS=0.5D0*(PI-DSIGN(X,1.0D0)*PI)
RETURN
1 ARCOS=DACOS(X)
RETURN