Changes between Initial Version and Version 1 of Ticket #15712
- Timestamp:
- 01/23/14 01:30:27 (8 years ago)
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Ticket #15712 – Description
initial v1 25 25 }}} 26 26 ''Sage's determinant() already uses PARI over Z/nZ for n less than the machine word size; it would be trivial to adapt it to work also over the reals.'' 27 28 According to Dima, the fix should be: 29 30 ''Is the default choice of the algorithm the right one? 31 One can see that '' 32 {{{ 33 sage: A.determinant(algorithm="hessenberg") 34 16801.7979988558 35 }}} 36 ''is quite good... '' 37 38 '' 39 Sage computes det() by computing charpoly(0), too... The division-free algorithm is obviously meant for more general setting of rings, not fields. I don't know why it was made default here, perhaps just an oversight.''