[sage-support] Re: Spline question
On Wed, Mar 5, 2008 at 10:57 AM, dean moore [EMAIL PROTECTED] wrote: Thanks! That worked nicely. But should this type of thing be documented, as others may face this? Dean Sure! Could you just take the current docs for spline?, modifying them the way you wish they were regarding the above issues, and put the result as a response to this email? William --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Spline question
On Wed, Mar 5, 2008 at 12:31 PM, dean moore [EMAIL PROTECTED] wrote: Not sending this to the whole group -- no reason. Sure, will document it let you know when I have something nice. The word spline seems to occur in two pages I find. Thanks! In other news, I finally dual-booted my computer Microsoft-Linux was trying to install sage from source. No m4. Running Ubuntu 7.10. I type which m4 in a terminal next line is blank. While it's not a big deal to grab a package install it, I want to make sure I have the right thing. Is this the m4 referred at http://en.wikipedia.org/wiki/GNU_m4 ? What I'm guessing; please correct me be I wrong. Might be another documentation thing. My first searches led me to a machine gun, probably not a component of sage. Yes, you need the m4 mentioned above. There may be other packages you need -- refer to the README.txt. Do [EMAIL PROTECTED]:~$ sudo apt-get install m4 to install m4 on ubuntu. Unfortunately, at present a machine gun can't be used in lieu m4 when building Sage. -- William On Wed, Mar 5, 2008 at 1:13 PM, William Stein [EMAIL PROTECTED] wrote: On Wed, Mar 5, 2008 at 10:57 AM, dean moore [EMAIL PROTECTED] wrote: Thanks! That worked nicely. But should this type of thing be documented, as others may face this? Dean Sure! Could you just take the current docs for spline?, modifying them the way you wish they were regarding the above issues, and put the result as a response to this email? William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Spline question
On Wed, Mar 5, 2008 at 8:10 PM, dean moore [EMAIL PROTECTED] wrote: Well, I've been tempted to do something with a machine gun ... Grabbed m4-1.4.10 unpacked it. Still get the same error, SAGE BUILD ERROR: Command 'm4' not found when cd-ing into sage's directory typing make, as described in the installation guide. Seems to unpack m4 right there, and not in another directory. Thinking of questions of finding it, tried unpacking in sage's directory. Ditto. Something with my path? Won't let me put it in root directory. Also tried sudo apt-get install m4. Couldn't find package m4. Did you put a period at the end of the command line? Did you setup apt ever? You may have to edit /etc/apt/sources.list Shouldn't this stuff come with ubuntu 7.10? No, it is a compiler tool, and the Ubuntu CD is a fairly minimal Linux install --it's just what you need to get work done, not to build new software. You'll need these packages: g++, make, m4, ranlib William Dean --- On Wed, Mar 5, 2008 at 4:05 PM, William Stein [EMAIL PROTECTED] wrote: On Wed, Mar 5, 2008 at 12:31 PM, dean moore [EMAIL PROTECTED] wrote: Not sending this to the whole group -- no reason. Sure, will document it let you know when I have something nice. The word spline seems to occur in two pages I find. Thanks! In other news, I finally dual-booted my computer Microsoft-Linux was trying to install sage from source. No m4. Running Ubuntu 7.10. I type which m4 in a terminal next line is blank. While it's not a big deal to grab a package install it, I want to make sure I have the right thing. Is this the m4 referred at http://en.wikipedia.org/wiki/GNU_m4 ? What I'm guessing; please correct me be I wrong. Might be another documentation thing. My first searches led me to a machine gun, probably not a component of sage. Yes, you need the m4 mentioned above. There may be other packages you need -- refer to the README.txt. Do [EMAIL PROTECTED]:~$ sudo apt-get install m4 to install m4 on ubuntu. Unfortunately, at present a machine gun can't be used in lieu m4 when building Sage. -- William On Wed, Mar 5, 2008 at 1:13 PM, William Stein [EMAIL PROTECTED] wrote: On Wed, Mar 5, 2008 at 10:57 AM, dean moore [EMAIL PROTECTED] wrote: Thanks! That worked nicely. But should this type of thing be documented, as others may face this? Dean Sure! Could you just take the current docs for spline?, modifying them the way you wish they were regarding the above issues, and put the result as a response to this email? William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Spline question
Maybe I'm missing something, but what is your question? --Mike On Tue, Mar 4, 2008 at 12:00 PM, dean moore [EMAIL PROTECTED] wrote: Playing with splines for other reasons, I found what I beat down to the following snippet (see attached) v = [] # Will hold points step = 0.5 # Fineness of my approximation for x in srange(0, 2*pi, step): # Fill parameter *v* with points v.append((cos(x), sin(x))) # on the unit circle. show(points(v, rgbcolor=(1,0,0), pointsize=20) + plot(spline(v), rgbcolor=(0,0,1))) Aha!, I thought, I'm being clueless. No one splines a parametric curve. But curious, I did some googleing. At http://www.tau.ac.il/~kineret/amit/scipy_tutorial/ there is a nice example at Figure 3, as there is at http://www.tau.ac.il/~kineret/amit/scipy_tutorial/ at Curve fitting and fairing using conic splines. Glanced at a couple SAGE pages, http://www.sagemath.org/doc/html/ref/module-sage.plot.plot.html http://www.sagemath.org/doc/html/ref/module-sage.plot.plot3d.list-plot3d.html , but nothing seemed helpful. Thanks for any ideas. Dean --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
