>From: Bil Kleb <W.L.Kleb / larc.nasa.gov>
>Subject: Anyone using NArray and 1.7.2?

> While trying to port my application from 1.6.7 to 1.7.2, I've encountered some
> odd errors that I've managed to boil down to a change in behavior due to loading
> the NArray (v0.5.6p2) package, viz,
> 
>  irb(main):001:0> (-2)**2
>  4
> 
>  irb(main):002:0> require 'narray'
>  true
> 
>  irb(main):003:0> (-2)**2
>  Complex(4, 0)

This is a problem in complex.rb, and I have requested bug fix
to the author before.  But not fixed yet.

Masa Tanaka