Added a couple of GUI tips and tricks + clarified the affectation of
expression-lists.

doc/texinfo/gmsh.texi

 \input texinfo.tex @c -*-texinfo-*-
-@c $Id: gmsh.texi,v 1.52 2003-05-05 23:00:44 geuzaine Exp $
+@c $Id: gmsh.texi,v 1.53 2003-05-06 00:20:35 geuzaine Exp $
 @c
 @c Copyright (C) 1997-2003 C. Geuzaine, J.-F. Remacle
 @c
@@ -46,7 +46,7 @@
 @c =========================================================================
 @c %**start of header
 @setfilename        gmsh.info
-@set EDITION        1.5
+@set EDITION        1.6
 @set GMSH-VERSION   1.44
 @set GMSH-WEB       @uref{http://www.geuz.org/gmsh/}
 @set COPYRIGHT      @copyright{} 1997-2003 Christophe Geuzaine, Jean-Fran@,{c}ois Remacle
@@ -537,7 +537,7 @@ transfinite or extruded meshes;
 Gmsh is not a multi-bloc generator: all meshes produced by Gmsh are
 conforming in the sense of finite element meshes;
 @item
-there is not support for curved mesh elements as of this writing (Gmsh
+there is no support for curved mesh elements as of this writing (Gmsh
 1.44);
 @item
 the user has no control over the quality of the mesh elements generated by
@@ -1171,11 +1171,12 @@ Defines a new expression list identifier @code{@var{string}[]}, or affects
 @var{expression-list} to an existing expression list identifier.
 
 @item @var{string} [ @{ @var{expression-list} @} ] = @{ @var{expression-list} @};
-Affects, item per item, @var{expression-list} to an existing expression list
-identifier. Remember the remark made when defining
-@w{@var{expression-list}s}: the braces enclosing the
-@w{@var{expression-list}s} are optional if the @var{expression-list} only
-contains a single item.
+Affects each item in the right hand side @var{expression-list} to the
+elements (indexed by the left hand side @var{expression-list}) of an
+existing expression list identifier. The two @w{@var{expression-list}s} must
+contain the same number of items. Remember the remark made when defining
+@w{@var{expression-list}s}: the braces enclosing an @var{expression-list}
+are optional if the list only contains a single item.
 
 @item @var{real-option} = @var{expression};
 Affects @var{expression} to a real option.
@@ -1203,24 +1204,24 @@ Divides and affects @var{expression} to an existing expression identifier
 or to a real option.
 
 @item @var{string} [ @{ @var{expression-list} @} ] = @{ @var{expression-list} @};
-Affects, item per item, @var{expression-list} to an existing expression list
-identifier.
+Affects, item per item, the right hand side @var{expression-list} to an
+existing expression list identifier.
 
 @item @var{string} [ @{ @var{expression-list} @} ] += @{ @var{expression-list} @};
-Adds and affects, item per item, @var{expression-list} to an existing
-expression list identifier.
+Adds and affects, item per item, the right hand side @var{expression-list}
+to an existing expression list identifier.
 
 @item @var{string} [ @{ @var{expression-list} @} ] -= @{ @var{expression-list} @};
-Subtracts and affects, item per item, @var{expression-list} to an existing
-expression list identifier.
+Subtracts and affects, item per item, the right hand side
+@var{expression-list} to an existing expression list identifier.
 
 @item @var{string} [ @{ @var{expression-list} @} ] *= @{ @var{expression-list} @};
-Multiplies and affects, item per item, @var{expression-list} to an existing
-expression list identifier.
+Multiplies and affects, item per item, the right hand side
+@var{expression-list} to an existing expression list identifier.
 
 @item @var{string} [ @{ @var{expression-list} @} ] /= @{ @var{expression-list} @};
-Divides and affects, item per item, @var{expression-list} to an existing
-expression list identifier.
+Divides and affects, item per item, the right hand side
+@var{expression-list} to an existing expression list identifier.
 
 @item Exit;
 Aborts the current script.
@@ -3232,6 +3233,19 @@ Save your preferred options with `Tools->Options->Save'. To reset default
 options, erase the @code{General.OptionsFileName} (usually
 @file{.gmsh-options} in your home directory) or use the `Restore default
 options' button in `Tools->Options->General->Output'.
+@item
+In the graphical user interface:
+
+@itemize --
+@item
+dragging the mouse in a numeric input field slides the value. The left
+button moves one step per pixel, the middle by 10 * step, and the right
+button by 100 * step;
+@item
+selecting the content of an input field, or lines in the message console
+(Tools->Message console), copies the selected text to the clipboard;
+@end itemize
+
 @item
 Read the @file{FAQ}...
 @end itemize