[sage-support] Re: False versus Unknown

Its quite terrible, in Python you can either raise an exception or maybe return None if you can't decide on a boolean return value. The only redeeming quality of Unknown is that it documents that it doesn't work, horray. IMHO we should deprecate it. On Wednesday, November 25, 2015 at 5:56:02

Re: [sage-support] Re: view(g) where g is graph: does not respect colors

Just completing the answers here, in case somebody needs it: 'view(g)' has a different behaviour in Sage and in SMC. In Sage it uses LaTeX, while in SMC it is more or less equivalent to g.show(method='js') (which relies on javascript/d3js, hence no latex whatsoever). Currently, there is no way

Re: [sage-support] Re: False versus Unknown

An error is perhaps the most appropriate but not very user friendly. None is better but a bit disappointing sage: my_equation.has_solution() # haha answer is None sage: And moreover has the same "boolean" behavior as Unknown sage: None or False False sage: False or None sage: not None False

Re: [sage-support] Re: False versus Unknown

IMHO undecidability has exception semantics so really there is only one correct solution, namely raise. Otherwise you get sage: foo() == bar() # haha both Unknown True On Tuesday, December 1, 2015 at 11:20:53 PM UTC+1, vdelecroix wrote: > > Unknown is not broken. It just does not behave

[sage-support] view(g) where g is graph: does not respect colors

The following code (sage 6.9): sage: g = graphs.PetersenGraph() sage: g.set_latex_options(vertex_color='green') sage: view(g) produces a black-and-white graph. In SMC produces a graph with blue vertices. What can I do? Thank you, Pedro -- You received this message because you are

[sage-support] view(g) where g is graph: does not respect colors

The following code (sage 6.9): sage: g = graphs.PetersenGraph() sage: g.set_latex_options(vertex_color='green') sage: view(g) produces a black-and-white graph. In SMC produces a graph with blue vertices. What can I do? Thank you, Pedro -- You received this message because you are

Re: [sage-support] Hide traceback

On Fri, Nov 27, 2015 at 1:39 AM, Pierre wrote: > Hi ! > > Is it possible, in a sage worksheet on SMC, to hide the traceback and just > keep the last line? No, this isn't implemented yet. Here's a ticket: https://github.com/sagemathinc/smc/issues/299 > > I have the

Re: [sage-support] False versus Unknown

> > > > This is inconsistent (and documented ;-). But is it documented someplace easy for Sage users to find? Thanks! > For the operations "or" and > "and" Python actually uses "__nonzero__". *Not* "__or__" and "__and__" > which are the bitwise operation "|" and "&". > > They work as

[sage-support] Re: view(g) where g is graph: does not respect colors

On Tuesday, December 1, 2015 at 9:40:18 AM UTC-8, Pedro Cruz wrote: > > The following code (sage 6.9): > > sage: g = graphs.PetersenGraph() > sage: g.set_latex_options(vertex_color='green') > sage: view(g) > > > produces a black-and-white graph. > Can you use "g.plot()" instead? If so, "g.plot?"

Re: [sage-support] Re: view(g) where g is graph: does not respect colors

On Tue, Dec 1, 2015 at 10:08 AM, John H Palmieri wrote: > On Tuesday, December 1, 2015 at 9:40:18 AM UTC-8, Pedro Cruz wrote: >> >> The following code (sage 6.9): >> >> sage: g = graphs.PetersenGraph() >> sage: g.set_latex_options(vertex_color='green') >> sage: view(g) >>

Re: [sage-support] view(g) where g is graph: does not respect colors

On Tue, Dec 1, 2015 at 9:40 AM, Pedro Cruz wrote: > The following code (sage 6.9): > > sage: g = graphs.PetersenGraph() > sage: g.set_latex_options(vertex_color='green') > sage: view(g) > > > produces a black-and-white graph. > > In SMC produces a graph with blue

Re: [sage-support] False versus Unknown

On 01/12/15 15:01, kcrisman wrote: This is inconsistent (and documented ;-). But is it documented someplace easy for Sage users to find? Thanks! I would say "no". It is in the `__init__` method of the `UnknownClass`. It should be moved to the main documentation class. For the

Re: [sage-support] False versus Unknown

Le mercredi 25 novembre 2015 12:28:45 UTC+1, vdelecroix a écrit : > > Hello, > [ Snip... ] The only way to fix Unknown would be to patch (non trivially) Python. > Boolean inherits from int... and it would be hard to have a third party > "Unknown" coherent with this inheritance. There was a

Re: [sage-support] False versus Unknown

On 01/12/15 15:18, Emmanuel Charpentier wrote: Le mercredi 25 novembre 2015 12:28:45 UTC+1, vdelecroix a écrit : Hello, [ Snip... ] The only way to fix Unknown would be to patch (non trivially) Python. Boolean inherits from int... and it would be hard to have a third party "Unknown"

[sage-support] How to Update sage from 6.9 to 6.10

Hi, I installed sage from source code(downloading it from git).Is there a way to update it to sage 6.10 without downloading it again? Thanks in advance. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and

[sage-support] Re: text3d and latex

On Wednesday, 25 November 2015 22:35:16 UTC, Peter Mueller wrote: > > The last activity of this thread is almost 6 years ago. So I'm wondering > if in the meantime it is possible to use latex code in text annotations for > 3d graphics. I don't care about toys like jmol -- it would be fine to

[sage-support] Re: How to Update sage from 6.9 to 6.10

On Tuesday, 1 December 2015 08:44:47 UTC, Ninad Bhat wrote: > > Hi, > I installed sage from source code(downloading it from git) > from git? Do you mean github, or sage trac git server? (you can tell by looking at the output of git remote -v ) Note that 6.10 is not yet release, there

[sage-support] Re: How to Update sage from 6.9 to 6.10

Thanks, Got it . -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to