On Sun, May 13, 2012 at 1:18 AM, Robert Bradshaw
wrote:
> On Sat, May 12, 2012 at 6:56 PM, kcrisman wrote:
>>
>>
>> On May 12, 4:26 pm, Harald Schilly wrote:
>>> On Thursday, May 10, 2012 5:28:38 PM UTC+2, 3DRaven wrote:
>>>
>>> > There is a suggestion to developers. The construction of
>>> > x
On Sat, May 12, 2012 at 6:56 PM, kcrisman wrote:
>
>
> On May 12, 4:26 pm, Harald Schilly wrote:
>> On Thursday, May 10, 2012 5:28:38 PM UTC+2, 3DRaven wrote:
>>
>> > There is a suggestion to developers. The construction of
>> > x = var('x')
>> > solve(x^2 + 3*x + 2, x)
>> > is inconvenient and n
On 05/12/2012 08:19 AM, Keshav Kini wrote:
>
> The latter conversation is an approximation of one that I had about five
> times near the beginning of our semester-long Sage class for
> undergraduates last fall, and which I'm sure other tutors for the class
> must have gone through as well with oth
On Fri, May 11, 2012 at 1:39 PM, Jason Grout
wrote:
> On 5/11/12 2:31 PM, Robert Bradshaw wrote:
>
>> When the declaration warning becomes an error, it will be a bit
>> better. Certainly an argument for not making all undefined symbols
>> into symbolic variables. One can write SR("a*x+b") and it d
On Friday, May 11, 2012 12:31:55 PM UTC-7, Robert Bradshaw wrote:
>
> I should not that all single-case letters used to be defined, and I
> for one was often bitten by this in strange ways.
>
Wow. Even "n" and "i"? I'm glad that was changed.
--
John
--
To post to this group, send an email
I should not that all single-case letters used to be defined, and I
for one was often bitten by this in strange ways.
On Fri, May 11, 2012 at 11:13 AM, Nils Bruin wrote:
> On May 11, 12:37 am, Julien Puydt wrote:
>
>> NameError: name 'y' is not defined -- perhaps you need to type var('y')
>> fir
Le vendredi 11 mai, Nils Bruin a écrit:
> On May 11, 10:29 am, kcrisman wrote:
> >> sage: _(y)=y
> > I thought underscore only worked to give the previous command, but I
> > guess the preparser makes this work right.
>
> No, as far as I can tell, _ is an ordinary variable for python. It's
> just
On Friday, May 11, 2012 3:37:54 PM UTC+8, Snark wrote:
>
> Le Fri, 11 May 2012 07:16:35 + (UTC),
> Simon King a écrit :
>
> > Hi,
> >
> > On 2012-05-11, Keshav Kini wrote:
> > > kcrisman writes:
> > >> To be clear, are you complaining about defining *only* x or that x
> > >> *is*, i
On 11 May 2012 09:32, Nils Bruin wrote:
> On May 11, 1:14 am, John Cremona wrote:
>> I would be
>> interested to see how many doctests fail if the automattice
>> predefinition iof x is turned off. How might that be done?
>
> sage/all_cmdline.py
> sage/all_notebook.py
>
> both contain the line:
>
Maybe this is only a minor point, but having x predefined means that
in many doctests where a number field is needed (and there are a lot),
the doctest starts with something like
sage: K. = NumberField(x^3-2)
which means that when the doctest is run, there is an unnecessary
overhead involced sinc
Le Fri, 11 May 2012 07:16:35 + (UTC),
Simon King a écrit :
> Hi,
>
> On 2012-05-11, Keshav Kini wrote:
> > kcrisman writes:
> >> To be clear, are you complaining about defining *only* x or that x
> >> *is*, in fact, predefined? In any case, this is a discussion we
> >> probably don't need
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