On Tue, Nov 23, 2010 at 1:09 PM, Charles Agriesti <dragriesti / comcast.net>wrote:

> In IRB, or saved as a program from Scite, put in something like:
>
> puts(MATH::PI)
>
> response is always " Uninitialized constant MATH(NameError)
>
> How can I tell if I have the MATH module in my installation? If I don't
> have it, how do I fix that? Thanks in advance.
>
> --
> Posted via http://www.ruby-forum.com/.
>
>
You could do something like this.

Object.constants.grep(/math/i) # => [:Math]