X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=lib%2Fmint%2Fbuilder%2Fexpression_tree.rb;h=cd6fe3a17afff33907bc250c1c633e0cb07ef214;hb=e9a75b398574fc8fd100ae26080fa9dd134ddecd;hp=da5fe25fb35915166cb172834b867316e3609b72;hpb=1fe3c0a8f848f48fba6a8971d80fd5419d1f8ade;p=mint%2Fmint-lib.git

diff --git a/lib/mint/builder/expression_tree.rb b/lib/mint/builder/expression_tree.rb
index da5fe25..cd6fe3a 100644
--- a/lib/mint/builder/expression_tree.rb
+++ b/lib/mint/builder/expression_tree.rb
@@ -63,7 +63,9 @@ module Mint
     def to_latex_local
       # FIXME: too dirty
       if right.instance_of?(LiteralNode) ||
-        right.instance_of?(RootNode)
+         right.instance_of?(RootNode)    ||
+         right.instance_of?(FactorialNode)
+
         unless right.to_s.match(/\A[-\.\d]+\z/)
           return "#{left.to_latex}#{right.to_latex}"
         end