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-rw-r--r--src/molecule_posn.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/molecule_posn.c b/src/molecule_posn.c
index efa04d9..603d3e1 100644
--- a/src/molecule_posn.c
+++ b/src/molecule_posn.c
@@ -70,6 +70,9 @@ static const char *rcsid = "$Header$";
It's also convenient to introduce the integer molecule coordinate m;
this is the integer grid coordinate i relative to that of the molecule
center, i.e. the above diagram has columns labelled with [i+m].
+
+ For (3) above, note that we describe the range of the grid
+ by the *closed* interval [grid_i_min, grid_i_max].
@enddesc
@hdate 27.Jan.2003