# HG changeset patch
# User jwe
# Date 1198173216 0
# Node ID 55f35e469c43745ef7e00277097a3e089bc83bf3
# Parent  bf3fb3477d2a7637d47873e101108219845bfd1c
[project @ 2007-12-20 17:53:36 by jwe]

diff -r bf3fb3477d2a -r 55f35e469c43 doc/interpreter/sparse.txi
--- a/doc/interpreter/sparse.txi	Thu Dec 20 16:55:26 2007 +0000
+++ b/doc/interpreter/sparse.txi	Thu Dec 20 17:53:36 2007 +0000
@@ -535,9 +535,12 @@
   0  0  1
 @end example
 
-returns a full matrix as can be seen. Additionally all sparse functions
-test the amount of memory occupied by the sparse matrix to see if the 
-amount of storage used is larger than the amount used by the full 
+returns a full matrix as can be seen. 
+
+
+Additionally, if @code{sparse_auto_mutate} is true, all sparse functions
+test the amount of memory occupied by the sparse matrix to see if the
+amount of storage used is larger than the amount used by the full
 equivalent. Therefore @code{speye (2) * 1} will return a full matrix as
 the memory used is smaller for the full version than the sparse version.
 
@@ -564,6 +567,11 @@
 always returns a sparse matrix, even if the memory used will be larger 
 than its full representation.
 
+@DOCSTRING(sparse_auto_mutate)
+
+Note that the @code{sparse_auto_mutate} option is incompatible with
+@sc{Matlab}, and so it is off by default.
+
 @node MathConsiderations, , ReturnType, Operators and Functions
 @subsubsection Mathematical Considerations
 
diff -r bf3fb3477d2a -r 55f35e469c43 scripts/miscellaneous/edit.m
--- a/scripts/miscellaneous/edit.m	Thu Dec 20 16:55:26 2007 +0000
+++ b/scripts/miscellaneous/edit.m	Thu Dec 20 17:53:36 2007 +0000
@@ -413,7 +413,7 @@
   ent = getpwuid (getuid);
   if (! isstruct (ent))
     ret = getenv ("USER");
-    if (isempty ())
+    if (isempty (ret))
       ret = getenv ("USERNAME");
     endif
   elseif (long_form)