arcos = 0.5D0*(PI-DSIGN(1.0D0,X)*PI)

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

diff --git a/source/cluster/wham/src-M/arcos.f b/source/cluster/wham/src-M/arcos.f
index 052a1e4..698f704 100644 (file)
--- a/source/cluster/wham/src-M/arcos.f
+++ b/source/cluster/wham/src-M/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

diff --git a/source/cluster/wham/src/arcos.f b/source/cluster/wham/src/arcos.f
index 052a1e4..698f704 100644 (file)
--- a/source/cluster/wham/src/arcos.f
+++ b/source/cluster/wham/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

diff --git a/source/wham/src-M/arcos.f b/source/wham/src-M/arcos.f
index 69810ea..afc6724 100644 (file)
--- a/source/wham/src-M/arcos.f
+++ b/source/wham/src-M/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(1.0D0,X)*PI)
+      ARCOS=0.5D0*(PI-DSIGN(1.0D0,X)*PI)
       RETURN
     1 ARCOS=DACOS(X)
       RETURN

diff --git a/source/wham/src/arcos.f b/source/wham/src/arcos.f
index 69810ea..afc6724 100644 (file)
--- a/source/wham/src/arcos.f
+++ b/source/wham/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(1.0D0,X)*PI)
+      ARCOS=0.5D0*(PI-DSIGN(1.0D0,X)*PI)
       RETURN
     1 ARCOS=DACOS(X)
       RETURN

diff --git a/source/xdrfpdb/src-M/arcos.f b/source/xdrfpdb/src-M/arcos.f
index 69810ea..afc6724 100644 (file)
--- a/source/xdrfpdb/src-M/arcos.f
+++ b/source/xdrfpdb/src-M/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(1.0D0,X)*PI)
+      ARCOS=0.5D0*(PI-DSIGN(1.0D0,X)*PI)
       RETURN
     1 ARCOS=DACOS(X)
       RETURN

diff --git a/source/xdrfpdb/src/arcos.f b/source/xdrfpdb/src/arcos.f
index 69810ea..afc6724 100644 (file)
--- a/source/xdrfpdb/src/arcos.f
+++ b/source/xdrfpdb/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(1.0D0,X)*PI)
+      ARCOS=0.5D0*(PI-DSIGN(1.0D0,X)*PI)
       RETURN
     1 ARCOS=DACOS(X)
       RETURN