Hello Qian, Le sam. 4 mai 2024 à 09:58, Qian Yun <oldk1...@gmail.com> a écrit : > > > > On 5/4/24 15:30, Grégory Vanuxem wrote: > > As a matter of fact, use of FLINT in FriCAS: > > > > My experience with FLINT is that is uses dense representation > for univariate polynomial. > > That representation makes it fast for multiplication (when polynomials > are dense). > > But I think very spare polynomial will choke it, for example > > (x^10000000+1)^n (for n is some small integer).
Wow, very specific here. In the real world, is it of use? Cryptography? Theoretical mathematics? I looked at SAGE and they also use FLINT for generic cases like the one I mentioned. I will likely take a look at PARI/GP, NTL and Singular, just to inform me, I don't really know some libraries/softwares that handle specifically well sparse representations of polynomials, For now I will have a look at SAGE with the keyword :sparse when instantiating a polynomial ring. Thanks for this example. - Greg > > ==== > > So for FriCAS, lacking a dense representation makes it > performs very bad at certain tasks (for example, multiplication). > > The karatsuba method implemented in > UnivariatePolynomialMultiplicationPackage is not working > at all because of the spare representation we have. > > - Qian > > -- > You received this message because you are subscribed to the Google Groups > "FriCAS - computer algebra system" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to fricas-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/fricas-devel/cbee840e-8104-4f39-839e-87c91c962cac%40gmail.com. -- You received this message because you are subscribed to the Google Groups "FriCAS - computer algebra system" group. To unsubscribe from this group and stop receiving emails from it, send an email to fricas-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/fricas-devel/CAHnU2dbJLo%3DsZ%2BNQyboptk%3DeJN9X4OX%2BUkSJOd6rDXV0vvBWow%40mail.gmail.com.
