On 23-Mar-06, at 6:38 AM, Lindsay B. wrote:

I need to access the sqrt method in my rails app. I believe I need the

Math library for this:

irb(main):010:0> require “Math”

LoadError: no such file to load – Math

Could someone tell me where I download the Math library from, and

where

I should place it on my file system? I can’t seem to find any

documentation explaining this.

It is already there, you can call it in a couple of ways:

puts Math.sqrt(2)

or if you want a lot of Math methods you can use include to get the

Math module’s methods without the Math prefix:

include Math

puts sqrt(2)

You should read up on what include does before using it.

Hope this helps,

Mike

–

Mike S. [email protected]

http://www.stok.ca/~mike/

The “`Stok’ disclaimers” apply.