diff options
Diffstat (limited to 'lib/matrix.rb')
| -rw-r--r-- | lib/matrix.rb | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/matrix.rb b/lib/matrix.rb index 0f4633212c..12116dbe99 100644 --- a/lib/matrix.rb +++ b/lib/matrix.rb @@ -478,17 +478,17 @@ class Matrix end # - # Returns +true+ if this is a regular matrix. + # Returns +true+ if this is a regular (i.e. non-singular) matrix. # def regular? - square? and rank == column_size + not singular? end # - # Returns +true+ is this is a singular (i.e. non-regular) matrix. + # Returns +true+ is this is a singular matrix. # def singular? - not regular? + determinant == 0 end # |