On Thu, 6 Feb 2003, Mauricio FernáÏdez wrote:
> 1 has in n n-order roots.

[Correct explanation]

> What should a well-behaved Complex library do about multiple roots?
        
There's a convention which result to choose when doing exponentiation.
It's an extension of the convention that sqrt(4) returns 2 and not -2. See
your favourite Math Handbook.
        
I'm not doing exponentiation of complexes with non-integer exponents, so I
have no intention to investigate if complex.rb does this right (but I
guess it does).

A quick preliminary test might be to compare test calculation results
against maple, matlab, octave, other standard math tools ("select isn't
broken").
        
Here's a real Error in complex.rb:

Complex(0,0) == :symbol
        
raises an exception instead of returning false

> PS: eqs.gsub!(/j/, "i")
> My EE background haunts me :)

What was their stated reason for prefering j over i?

  T