- newfunction(:is_numeric, :type => :rvalue, :doc => <<-EOS
-Returns true if the given argument is a Numeric (Integer or Float),
-or a String containing either a valid integer in decimal base 10 form, or
-a valid floating point string representation.
+ newfunction(:is_numeric, :type => :rvalue, :doc => <<-DOC
+ @summary
+ **Deprecated:** Returns true if the given value is numeric.
+
+ Returns true if the given argument is a Numeric (Integer or Float),
+ or a String containing either a valid integer in decimal base 10 form, or
+ a valid floating point string representation.