Lovasz' theta function used to work. Now it is broken for a wide variety of
graphs. Here's one example:
g=graphs.CompleteGraph(20)
g.lovasz_theta()
In this case the produced error is:
Error in lines 2-2 Traceback (most recent call last): File
"/cocalc/lib/python3.8/site-packages/smc_sagews/sag
I see that there are methods for saving a LP as and LP or MPS file in Sage.
Is it possible to *load* an LP from one of these file types? The online
help that I've found doesn't mention this or give examples of how to do it.
Thanks!
Craig
--
You received this message because you are subscribed
Thanks!
On Tue, Jun 9, 2015 at 1:03 PM, Vincent Delecroix <20100.delecr...@gmail.com
> wrote:
> You need to close the parenthesis
>
> sage: t = (
> : 1,
> : 2)
> sage: t
> (1, 2)
>
> Vincent
>
> On 09/06/15 18:58, Craig E Larson wrote:
>
>&
Sometimes I forget a parenthesis, etc, and I get a colon input prompt.
Double-enter won't escape the colon. Correcting the syntax also isn't
enough. Control-Z will exit Sage totally and I lose my data and history. Is
there another way to escape the colon besides Control-Z?
Here's an example.
s
Graph("E`oo") is the disjoint union of 2 triangles. Graph("ExSW") is two
triangles with 2 more edges connecting them. So the first graph is a
subgraph (a non-induced subgraph) of the second graph. But Sage reports
that it is not. Both graphs have order 6.
sage: h=Graph("E`oo")
sage: g=Graph("Ex
> This behavior was on Cloud Sage:
'Sage Version 6.2.rc2, Release Date: 2014-05-04'
--
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..
I am getting an error that I don't understand for the following definite
integral.
sage: integral(sqrt(1+(9*cos(3*x)^2)),0,pi/2)
This is definitely real on its domain and under the square-root is always
positive. Nevertheless, I get the error:
"RuntimeError: ECL says: Error executing code in M
