corrected typo

diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi
index 3cb6607cc441ec6fa65d2ca527e095aa647f6023..52a2429dd7f7b11a40cda37b0a78bf106048423c 100644 (file)
--- a/doc/tutorial/ginac.texi
+++ b/doc/tutorial/ginac.texi
@@ -1643,7 +1643,7 @@ taken, and the expression to replace it with. After @code{sp.add(A, B, 0)},
 @code{simplify_indexed()} will replace all scalar products of indexed
 objects that have the symbols @code{A} and @code{B} as base expressions
 with the single value 0. The number, type and dimension of the indices
 @code{simplify_indexed()} will replace all scalar products of indexed
 objects that have the symbols @code{A} and @code{B} as base expressions
 with the single value 0. The number, type and dimension of the indices

-doesn't matter; @samp{A~mu~nu*B.mu.nu} would also be replaced by 0.
+don't matter; @samp{A~mu~nu*B.mu.nu} would also be replaced by 0.

 
 @cindex @code{expand()}
 The example above also illustrates a feature of the @code{expand()} method:
 
 @cindex @code{expand()}
 The example above also illustrates a feature of the @code{expand()} method:


@@ -1783,7 +1783,7 @@ It is output as @samp{eps}:
 @}
 @end example
 
 @}
 @end example
 

-The matrix representation of the spinor metric is @code{[[ [[ 0, 1 ]], [[ -1, 0 ]]}.
+The matrix representation of the spinor metric is @code{[[ [[ 0, 1 ]], [[ -1, 0 ]] ]]}.

 
 @cindex @code{epsilon_tensor()}
 @cindex @code{lorentz_eps()}
 
 @cindex @code{epsilon_tensor()}
 @cindex @code{lorentz_eps()}