diff --git a/ChangeLog b/ChangeLog
index 15c5ae3ccf..d71e8ed7aa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Jun 20 20:28:44 2009  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* complex.c: edited rdoc.
+
+	* numeric.c: ditto.
+
 Sat Jun 20 08:56:47 2009  Tadayoshi Funaba  <tadf@dotrb.org>
 
 	* complex.c: edited rdoc.
diff --git a/complex.c b/complex.c
index 30c4199063..c2113f23c7 100644
--- a/complex.c
+++ b/complex.c
@@ -380,6 +380,13 @@ nucomp_s_canonicalize_internal(VALUE klass, VALUE real, VALUE imag)
     }
 }
 
+/*
+ * call-seq:
+ *   Complex.rect(real[, imag])         =>  complex
+ *   Complex.rectangular(real[, imag])  =>  complex
+ *
+ * Returns a complex object which denotes the given rectangular form.
+ */
 static VALUE
 nucomp_s_new(int argc, VALUE *argv, VALUE klass)
 {
@@ -519,6 +526,12 @@ f_complex_polar(VALUE klass, VALUE x, VALUE y)
 					  f_mul(x, m_sin(y)));
 }
 
+/*
+ * call-seq:
+ *   Complex.polar(abs, arg)  =>  complex
+ *
+ * Returns a complex object which denotes the given polar form.
+ */
 static VALUE
 nucomp_s_polar(VALUE klass, VALUE abs, VALUE arg)
 {
diff --git a/numeric.c b/numeric.c
index cf3f0d2455..c20e510736 100644
--- a/numeric.c
+++ b/numeric.c
@@ -502,8 +502,9 @@ num_to_int(VALUE num)
  *
  * Document-class: Float
  *
- *  <code>Float</code> objects represent inexact numbers using the native
- *  architecture's double-precision floating point representation.
+ *  <code>Float</code> objects represent inexact real numbers using
+ *  the native architecture's double-precision floating point
+ *  representation.
  */
 
 VALUE