From 7d360efe92d2db11a4e51820ed2f52de36b3257f Mon Sep 17 00:00:00 2001 From: Marc-Andre Lafortune Date: Thu, 30 Apr 2020 17:49:06 -0400 Subject: [ruby/matrix] Fix Matrix#unitary? [#14] --- lib/matrix.rb | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'lib') diff --git a/lib/matrix.rb b/lib/matrix.rb index a0f116095c..9d6650370d 100644 --- a/lib/matrix.rb +++ b/lib/matrix.rb @@ -983,11 +983,11 @@ class Matrix # def unitary? raise ErrDimensionMismatch unless square? - rows.each_with_index do |row, i| - column_count.times do |j| + rows.each_with_index do |row_i, i| + rows.each_with_index do |row_j, j| s = 0 row_count.times do |k| - s += row[k].conj * rows[k][j] + s += row_i[k].conj * row_j[k] end return false unless s == (i == j ? 1 : 0) end -- cgit v1.2.3