[sage-support] Re: Using scipy special functions
sage: reset() sage: import mpmath sage: plot(lambda x: mpmath.legenp(2,0,x),(x,-1,1)) On 11 Kwi, 00:34, achrzesz achrz...@wp.pl wrote: Workaround: list_plot([(x,legenp(2,0,x)) for x in srange(-1,1,0.1)],plotjoined=True) On 10 Kwi, 23:47, ObsessiveMathsFreak obsessivemathsfr...@gmail.com wrote: The mpmath import seems to work, but I am unable to plot the resulting functions. I get an error about too many values to unpack. from mpmath import * plot(lambda x: legenp(1,0,x),(x,-1,1)) Traceback (click to the left of this block for traceback) ... ValueError: too many values to unpack On Apr 10, 8:38 pm, achrzesz achrz...@wp.pl wrote: Or simply legendre_P, legendre_Q Unfortunately, these functions do not support non integer values of n, i.e. they don't support generalised legendre functions, which is what I need. -- 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 URL: http://www.sagemath.org
[sage-support] sage not showing any output
hi,i am very thankful for entire team for developing such useful software,but it worked very fine some time, but let me tell my config first : windows-xp:32-bit intel core-duo processor, 3gb ram i have installed vmware and everything was fine, when i start vmware it boots ubuntu as it is known, but after that i am not getting any output in sage output,even not an error documentation, i dont know what happened suddenly it was fine ,thank you for the reply which you will send -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
Now THAT seriously needs to be made clearer in the documentation, including some examples. Also, how to use use_grobner because use_grobner=True don't work. Joal Heagney -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
I'm not sure but: sage: solve(x==sqrt(x+1),x,to_poly_solve='use_grobner=True') [x == 1/2*sqrt(5) + 1/2] On 11 Kwi, 12:24, ancienthart joalheag...@gmail.com wrote: Now THAT seriously needs to be made clearer in the documentation, including some examples. Also, how to use use_grobner because use_grobner=True don't work. Joal Heagney -- 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 URL: http://www.sagemath.org
[sage-support] Curved Edges in Graphs
I'm using the graph theory modules and I have a need to draw curved edges in certain graphs. For example, to draw the complete graph K_4 as a planar graph, it's sometimes useful to draw a curved edge looping around the main figure than to redraw the whole figure as a triangular graph. Currently, the planar layout code does not seem to support curved edges. In fact, I can't find any documentation on how to implemented curved edges in graphs at all, though sage seems to have support for them when drawing multigraphs. Is there any way to give pos data to edges in graphs as there is for vertices? Is there any other way to make edges curved in graph plots? -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y], use_grobner=true); works in wxmaxima 0.8.7 but does not in maxima_console() On 11 Kwi, 13:06, achrzesz achrz...@wp.pl wrote: I'm not sure but: sage: solve(x==sqrt(x+1),x,to_poly_solve='use_grobner=True') [x == 1/2*sqrt(5) + 1/2] On 11 Kwi, 12:24, ancienthart joalheag...@gmail.com wrote: Now THAT seriously needs to be made clearer in the documentation, including some examples. Also, how to use use_grobner because use_grobner=True don't work. Joal Heagney -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
sage: solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y],to_poly_solve='use_grobner=True') [[x == -9/68*sqrt(55) + 135/68, y == -15/68*sqrt(5)*sqrt(11) + 123/68], [x == 9/68*sqrt(55) + 135/68, y == 15/68*sqrt(5)*sqrt(11) + 123/68]] On 11 Kwi, 13:29, achrzesz achrz...@wp.pl wrote: to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y], use_grobner=true); works in wxmaxima 0.8.7 but does not in maxima_console() On 11 Kwi, 13:06, achrzesz achrz...@wp.pl wrote: I'm not sure but: sage: solve(x==sqrt(x+1),x,to_poly_solve='use_grobner=True') [x == 1/2*sqrt(5) + 1/2] On 11 Kwi, 12:24, ancienthart joalheag...@gmail.com wrote: Now THAT seriously needs to be made clearer in the documentation, including some examples. Also, how to use use_grobner because use_grobner=True don't work. Joal Heagney -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
Oops! without to_poly_solve='use_grobner=True' also works On 11 Kwi, 13:37, achrzesz achrz...@wp.pl wrote: sage: solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y],to_poly_solve='use_grobner=True') [[x == -9/68*sqrt(55) + 135/68, y == -15/68*sqrt(5)*sqrt(11) + 123/68], [x == 9/68*sqrt(55) + 135/68, y == 15/68*sqrt(5)*sqrt(11) + 123/68]] On 11 Kwi, 13:29, achrzesz achrz...@wp.pl wrote: to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y], use_grobner=true); works in wxmaxima 0.8.7 but does not in maxima_console() On 11 Kwi, 13:06, achrzesz achrz...@wp.pl wrote: I'm not sure but: sage: solve(x==sqrt(x+1),x,to_poly_solve='use_grobner=True') [x == 1/2*sqrt(5) + 1/2] On 11 Kwi, 12:24, ancienthart joalheag...@gmail.com wrote: Now THAT seriously needs to be made clearer in the documentation, including some examples. Also, how to use use_grobner because use_grobner=True don't work. Joal Heagney -- 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 URL: http://www.sagemath.org
[sage-support] Re: Unable to Solve Simple Problem
So it seems that in Sage use_grobner is not as essential
as in Maxima
sage: maxima('load(to_poly_solver)')
sage: maxima('to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y])')
%union()
sage: maxima('to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9],
[x,y],use_grobner=true)')
%union([x=-(9*sqrt(55)-135)/68,y=-(3*5^(3/2)*sqrt(11)-123)/68],
[x=(9*sqrt(55)+135)/68,y=(3*5^(3/2)*sqrt(11)+123)/68])
Oops!
without to_poly_solve='use_grobner=True'
also works
On 11 Kwi, 13:37, achrzesz achrz...@wp.pl wrote:
sage: solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9],
[x,y],to_poly_solve='use_grobner=True')
[[x == -9/68*sqrt(55) + 135/68, y == -15/68*sqrt(5)*sqrt(11) +
123/68], [x == 9/68*sqrt(55) + 135/68, y == 15/68*sqrt(5)*sqrt(11) +
123/68]]
On 11 Kwi, 13:29, achrzesz achrz...@wp.pl wrote:
to_poly_solve([(x-5)^2+y^2-16, (y-3)^2+x^2-9], [x,y],
use_grobner=true);
works in wxmaxima 0.8.7 but does not in maxima_console()
On 11 Kwi, 13:06, achrzesz achrz...@wp.pl wrote:
I'm not sure but:
sage: solve(x==sqrt(x+1),x,to_poly_solve='use_grobner=True')
[x == 1/2*sqrt(5) + 1/2]
On 11 Kwi, 12:24, ancienthart joalheag...@gmail.com wrote:
Now THAT seriously needs to be made clearer in the documentation,
including
some examples.
Also, how to use use_grobner because use_grobner=True don't work.
Joal Heagney
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[sage-support] Missing file in scipy installation?
I was trying some functions to do root locus plots found on the net. Doing this I found out that there seems to be something incomplete about the scipy installation in sage. from scipy.io.array_import import read_array --- ImportError Traceback (most recent call last) /home/vdbergh/SRC/ROOTLOCUS/ipython console in module() /home/vdbergh/sage-4.6.2-linux-64bit-ubuntu_8.04.4_lts-x86_64-Linux/ local/lib/python2.6/site-packages/scipy/io/array_import.py in module() 25 26 # Local imports. --- 27 import numpyio 28 29 default = None ImportError: No module named numpyio -- 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 URL: http://www.sagemath.org
Re: [sage-support] memory error
Most likely you don't have enough ram to store 101^5 temporary values. -- 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 URL: http://www.sagemath.org
[sage-support] Re: Using scipy special functions
Or simply legendre_P, legendre_Q Unfortunately, these functions do not support non integer values of n, i.e. they don't support generalised legendre functions, which is what I need. Are gen_legendre_P and gen_legendre_Q okay? These are all used from Maxima, as I recall. - kcrisman -- 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 URL: http://www.sagemath.org
[sage-support] Re: Graphics Array and latex legends
On Apr 8, 5:10 pm, achrzesz achrz...@wp.pl wrote: This works for me: p1=plot(x^2, (x, -pi, pi),label=f) G=graphics_array(((p1,p1),(p1,p1))) G.show(figsize=[8,8]) Of course, that's not quite the same thing as a legend. Looks decent, though. - kcrisman -- 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 URL: http://www.sagemath.org
