fix lgamma doc.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15391 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
lann · Feb 7, 2008 · f6d8188 · f6d8188
1 parent 4cd86db
commit f6d8188
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/math.c b/math.c
@@ -542,7 +542,7 @@ math_gamma(VALUE obj, VALUE x)
  *  the sign of gamma of x.
  *
  *  Math.lgamma(x) is same as
- *   [Math.log(Math.gamma(x)), Math.gamma(x) < 0 ? -1 : 1]
+ *   [Math.log(Math.gamma(x).abs), Math.gamma(x) < 0 ? -1 : 1]
  *  but avoid overflow by Math.gamma(x) for large x.
  */