> None of the examples you quoted would have a lower complexity with O(1) row > references. If temporaries are a real problem (Benchmarks first, please)
Volker, please do not change the subject. I did not say that complexity was a problem. My problem is with the behaviour of .row which returns mutable rows from an immutable matrix. To illustrate it, I merely mentionned that forcing .row( ) to return a *copy* also forced us to have a linear-time method when we could expect a O(1) -- thus pointing another flaw of its current implementation. Nathann -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.