[sage-support] linear map question
Hi, I wish to construct a linear map on V corresponding to the field automorphism theta: K=GF(2^64,'a') theta=Hom(K,K)[1] ## this sends a -- a^2 V=VectorSpace(GF(2),64) I thought this would be straightforward (unless my maths is wrong), but I cannot find any functions to help me, and sage will not allow me a coersion. Can anyone help me on this? Thanks. --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Why is Sage called a Computer *Algebra* system? What is def of algebra?
On May 17, 11:29 am, john_perry_usm john.pe...@usm.edu wrote: I was under the very vague impression that computer algebra systems a la Maple, Mathematica etc. were so-called because they started out emphasizing algebraic and symbolic manipulation, and so came out of the so-called computer algebra community, Also, can't the limited calculus operations Sage performs be mapped onto algebra? I meana computer can't do anything involving infinity except to treat infinity as just another variable that obeys certain algebraic rules. So perhaps symbol manipulation itself, which is what all computer ultimately do, can be thought of as just algebra? Chris --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Running sage from another computer on the network
Ok, for those of you who saw my recent message about the illegal instruction ... I think I now know why that doesn't work. I think it is that the latest sse2-3.4.2 virtual machine does not support my processor (AMD Athlon 64 3000). I don't know why, since this cpu does support sse2, but perhaps one sse3 instruction is used somewhere and the Athlon does not support sse3, and thus it crashes. Perhaps someday support for the Athlon will be added? Anyway I tried running it on a newer laptop on my network, and it did indeed start a sage server. When I start firefox on this computer and go to the suggested address (192.168.175.128) the sage server starts up and I can execute sage commands. (Yay!!) I'm wondering though, can I run sage from another computer on my network? After starting the sage server on the laptop as usual, I tried typing in 192.168.175.128 in the browser on my desktop computer, but it just reports that it can't connect. How do I get this to work? Do I have to make an entry in the Firewall Virtual servers section of my router or something like that? Sorry, obviously I'm not a networking giant :) ~Paul --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Running sage from another computer on the network
On May 17, 1:24 pm, paul pmen...@gmail.com wrote: Ok, for those of you who saw my recent message about the illegal instruction ... I think I now know why that doesn't work. I think it is that the latest sse2-3.4.2 virtual machine does not support my processor (AMD Athlon 64 3000). I don't know why, since this cpu does support sse2, but perhaps one sse3 instruction is used somewhere and the Athlon does not support sse3, and thus it crashes. No, the problem is not SSE3, but certain advanced instructions used in MPIR. This will be fixed in Sage 4.0. Cheers, Michael --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Running sage from another computer on the network
On 17 May 2009, at 21:24, paul wrote: Anyway I tried running it on a newer laptop on my network, and it did indeed start a sage server. When I start firefox on this computer and go to the suggested address (192.168.175.128) the sage server starts up and I can execute sage commands. (Yay!!) I'm wondering though, can I run sage from another computer on my network? After starting the sage server on the laptop as usual, I tried typing in 192.168.175.128 in the browser on my desktop computer, but it just reports that it can't connect. How do I get this to work? This is the VMWare image, right? Networking and VMWare are a bit weird. I'm not using the player so things might be a bit different, but I have options in VMWare to set the networking up three ways. * Host-only : The network can only send/receive to the host OS. No other machine can communicate with the guest OS. * Bridged : The guest OS is effectively plugged straight into the network. It'll get an address from the main network. Other machines should be able to see it. * NAT : The guest OS looks like it's behind a NAT-ing router. Effectively it always gets the same address whatever network the host OS is on. Other machines probably can't see it, but it can see the real network. I expect you want Bridged, but probably are set-up for something else. Do I have to make an entry in the Firewall Virtual servers section of my router or something like that? Firewall on your laptop, or firewall on a router on the network? If it's on the router, then no, that's only for access outside your network. If we're talking about on the laptop, then I'm not sure. I'd expect VMWare (in bridged mode) to bypass the firewall as it's receiving packets on a different address to the one the firewall is monitoring, but I don't know. As I said VMWare and networking is a little odd. --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Running sage from another computer on the network
This is the VMWare image, right? Yep. options in VMWare to set the networking up three ways. * Host-only * Bridged * NAT I expect you want Bridged, but probably are set-up for something else. Yes, NAT was selected. I tried changing it to Bridged, but then the sage server didn't work even on the machine running the sever. Of course I didn't know if I was supposed to go to the same IP address as before, or something different. ~Paul --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Downloading binaries or source to completion
On May 16, 6:12 pm, Paul Sargent psa...@gmail.com wrote: Adding a -c flag to wget will make it continue an aborted download if the server will let it. It'll probably still fail but at least you can recover. Very helpful. I'll give that a go. Thanks. Kevin On 17 May 2009, at 01:04, kilucas kevin.lu...@concave.co.uk wrote: It took me 6 attempts to retrieve the latest Windows binary from across a number of mirrors and I'm now running into the same problem trying to retrieve the source of 3.4.2 and 3.4.1 using wget ( I don't know how to detect or use mirrors by this method). In all cases the download seems to freeze after various periods of time. Is there any special trick to getting these downloads to complete perhaps or are the mirrors just having a bad week? Is there any specific mirror that people find especially reliable perhaps? Thanks Kevin- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: newbie wubi ubuntu alternative to using vmware in windows
Well, I did it. It took a while to get over the feeling of not having much useful to contribute. (Which was probably accurate) But, if there are some struggling windows users that are helped by it, that makes it worth it. It was also a new learning experience. So struggling windows users, check it out, lol. --~--~-~--~~~---~--~~ 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 group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
