Ruby Issue Tracking System

02/04/2013

12:28 AM Ruby Bug #7777 (Closed): wrong use of "Raise" method in matrix.rb

=begin
"Raise" method added by e2mmap library shows customized error messages according to pre-registered formats:
$ irb
irb(main):001:0> require 'matrix'
=> true
irb(main):002:0> Matrix.Raise ArgumentError, 2, 3 rescue $!... pypypy567 (py _)

12/25/2012

07:39 AM Ruby Bug #7620 (Closed): Incorrect exception for non-square matrix in Matrix::LUPDecomposition#det

If m is a non-square matrix , m.lup.det should raise Matrix::ErrDimensionMismatch, but it raises NoMethodError.
> ruby -rmatrix -e 'Matrix[[0, 0]].lup.det'
C:/ruby200/lib/ruby/2.0.0/matrix/lup_decomposition.rb:80:in `det': undefined ... pypypy567 (py _)

12/18/2012

01:15 AM Ruby Bug #7582 (Closed): a mistake in Matrix#lup RDoc

http://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/38300/entry/lib/matrix.rb#L1203
> # l * u == a * p # => true
http://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/38300/entry/lib/matrix/lup_deco... pypypy567 (py _)

10/28/2012

04:28 PM Ruby Bug #7228 (Closed): Matrix#determinant_e returns rank

http://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/37328/entry/lib/matrix.rb#L1090
> def determinant_e
> ...
rank_e からコピーして直し忘れたように見えます。
pypypy567 (py _)

10/23/2012

09:28 PM Ruby Bug #7208 (Closed): 複素固有値を持つ行列に対する Matrix#eigensystem の返り値が正しくない

=begin
概要:
Matrix[[0, 1], [-1, 0]] などのように対角化可能だが固有値に複素数を含む行列に対して Matrix#eigensystem が正しい結果を返さないようです。
再現手順:
irb(main):001:0> RUBY_DESCRIPTION
=> "ruby 1.9.3p286 (2012-10-12 revision 37165) [i386-mswin32_100]"
irb(main):002:0... pypypy567 (py _)