[sage-support] Re: Numerical methods for solving matrix equations

2009-06-18 Thread Jason Grout
William Stein wrote: > On Thu, Jun 18, 2009 at 8:31 PM, Ethan Van Andel wrote: >> Does sage have a way to use a numeric method (such as Jacobi, or Gauss- >> Sidel) to solve matrix equations of the form A*x = b? (CDF matrices by >> the way). the A.solve_right(b) method is too slow. >> >> Thanks, >>

[sage-support] Re: API up

2009-06-18 Thread Erik Lane
The gif link is broken. Tries to use a private address. 192.168.1.101 That doesn't work with my computer, of course. I don't have IE8 so I can't comment on that. On Thu, Jun 18, 2009 at 4:13 PM, David Joyner wrote: > > On Thu, Jun 18, 2009 at 2:38 PM, Mikie wrote: >> >> How fast was it and did it

[sage-support] Re: API up

2009-06-18 Thread David Joyner
On Thu, Jun 18, 2009 at 2:38 PM, Mikie wrote: > > How fast was it and did it work with IE8? It was fast for me but sorry, I don't use windows. > > On Jun 18, 11:37 am, David Joyner wrote: >> Cool! >> >> >> >> On Thu, Jun 18, 2009 at 12:46 PM, Mikie wrote: >> >> > I have my API running on a ho

[sage-support] Re: API up

2009-06-18 Thread Mikie
Do you Skype. Use my e-mail. On Jun 18, 1:32 pm, Marshall Hampton wrote: > Works fine, very fast on Firefox 2.  I am very interested in this sort > of effort, if you have a chance to share your thoughts on what you > have learned doing this I would greatly appreciate it. > > -M. Hampton > > On

[sage-support] Re: bug: no local scope for symbolic variables

2009-06-18 Thread Ondrej Certik
On Thu, Jun 18, 2009 at 12:29 AM, Robert Bradshaw wrote: > > On Jun 17, 2009, at 9:21 AM, William Stein wrote: > >> 2009/6/17 Robert Bradshaw : >>> >>> On Jun 17, 2009, at 3:05 AM, Utpal Sarkar wrote: >>> Thanks for the replies. I noticed something funny: if you call x = var("X") in some

[sage-support] Re: Numerical methods for solving matrix equations

2009-06-18 Thread William Stein
2009/6/18 Ethan Van Andel : > > That worked beautifully, thanks for the fast response. Making CDF's solve_right faster is now: http://trac.sagemath.org/sage_trac/ticket/6358 William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegr

[sage-support] Re: API up

2009-06-18 Thread Marshall Hampton
Works fine, very fast on Firefox 2. I am very interested in this sort of effort, if you have a chance to share your thoughts on what you have learned doing this I would greatly appreciate it. -M. Hampton On Jun 18, 1:38 pm, Mikie wrote: > How fast was it and did it work with IE8? > > On Jun 18

[sage-support] Re: Inheritance from sage.symbolic.expression.Expression

2009-06-18 Thread Nicolas
Dear Burcin, After thorough tests, your patch works pretty well ! I have just encountered a problem with pickling (and thus the save function). There is a workaround by using the __repr__ function for file saving but this requires parsing after loading. Here is the behavior of save in sage.4.0.1

[sage-support] Re: Numerical methods for solving matrix equations

2009-06-18 Thread Ethan Van Andel
That worked beautifully, thanks for the fast response. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this grou

[sage-support] Re: API up

2009-06-18 Thread Mikie
How fast was it and did it work with IE8? On Jun 18, 11:37 am, David Joyner wrote: > Cool! > > > > On Thu, Jun 18, 2009 at 12:46 PM, Mikie wrote: > > > I have my API running on a host.  Not real pretty yet, but it seems to > > work. > > Please, test. > >http://pirsqrt.com:7316 > > Thanx- Hide qu

[sage-support] Re: Numerical methods for solving matrix equations

2009-06-18 Thread William Stein
On Thu, Jun 18, 2009 at 8:31 PM, Ethan Van Andel wrote: > > Does sage have a way to use a numeric method (such as Jacobi, or Gauss- > Sidel) to solve matrix equations of the form A*x = b? (CDF matrices by > the way). the A.solve_right(b) method is too slow. > > Thanks, > Ethan Here is an example

[sage-support] Numerical methods for solving matrix equations

2009-06-18 Thread Ethan Van Andel
Does sage have a way to use a numeric method (such as Jacobi, or Gauss- Sidel) to solve matrix equations of the form A*x = b? (CDF matrices by the way). the A.solve_right(b) method is too slow. Thanks, Ethan --~--~-~--~~~---~--~~ To post to this group, send email t

[sage-support] Re: API up

2009-06-18 Thread David Joyner
Cool! On Thu, Jun 18, 2009 at 12:46 PM, Mikie wrote: > > I have my API running on a host.  Not real pretty yet, but it seems to > work. > Please, test. > http://pirsqrt.com:7316 > Thanx > > > --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@

[sage-support] API up

2009-06-18 Thread Mikie
I have my API running on a host. Not real pretty yet, but it seems to work. Please, test. http://pirsqrt.com:7316 Thanx --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-supp

[sage-support] Re: build errors for sage 4.0.1 on Fedora 11

2009-06-18 Thread William Stein
On Wed, Jun 17, 2009 at 6:44 PM, gerhard wrote: > > for now, I just bandaided the code by adding > const_cast expressions. > -gerhard > I would still really like to know if you still have this problem with sage-4.0.2.rc3: http://sage.math.washington.edu/home/wstein/farm/src/ Since if so, we'll

[sage-support] Re: factor

2009-06-18 Thread Simon King
Hi William, On Jun 18, 12:14 pm, William Stein wrote: ... > You can also do > > sage: R. = ZZ[] > > which doesn't look like a double definition. That's what I usually do. Sure. But when you see Mikie's post from June 17, this is what he did. The only problem was (as pointed out by other people

[sage-support] Re: factor

2009-06-18 Thread William Stein
On Thu, Jun 18, 2009 at 11:24 AM, John Cremona wrote: > > > > On Jun 17, 5:34 pm, William Stein wrote: >> 2009/6/17 Robert Bradshaw : >> >> >> >> > On Jun 17, 2009, at 4:05 AM, John Cremona wrote: >> >> >> I think is is easier, both on the eye and for a beginner to >> >> understand: >> >> >> sage

[sage-support] Re: factor

2009-06-18 Thread John Cremona
On Jun 17, 5:34 pm, William Stein wrote: > 2009/6/17 Robert Bradshaw : > > > > > On Jun 17, 2009, at 4:05 AM, John Cremona wrote: > > >> I think is is easier, both on the eye and for a beginner to > >> understand: > > >> sage: x = polygen(ZZ) > >> sage: f = 2*x**2 - x > >> sage: f.factor() > >>

[sage-support] Re: error finding the units of a number field

2009-06-18 Thread John Cremona
I only just saw this thread. I wrote the units functionality (of course pari does the hard work); I think Francis Clarke made some changes so that things work for relative extensions too. [If anything for relative extensions works properly in Sage, it is usually Francis who takes the credit].