Hi. Marc-Andre, In [ruby-core:29154] the message: "[ruby-core:29154] [Feature #2772] Matrix: Calculating determinant using Bareiss algorithm [patch]", on Mar/31 12:14(JST) Marc-Andre Lafortune writes: >Unless there is objection, the official spec of determinant will be >to calculate the determinant using the algorithm of its choice. >Implementation will rely on #determinant_bareiss and >#determinant_gaussian (depending on types of the elements), and users >needing a specific algorithm can call those directly. I agree the idea that the choice is possible. Which is the default det defined, determinant_bareiss or determinant_gaussian? -- keiju