On Jan 14, 2008 7:23 AM, Jaap Spies <[EMAIL PROTECTED]> wrote:
>
> William Stein wrote:
> > On 1/14/08, John Cremona <[EMAIL PROTECTED]> wrote:
> >> Jaap is right:
> >>
> >> Compare
> >>
> >
> > I've created and posted a patch here:
> >
> >http://trac.sagemath.org/sage_trac/ticket/1776
> >
> >
William Stein wrote:
> On 1/14/08, John Cremona <[EMAIL PROTECTED]> wrote:
>> Jaap is right:
>>
>> Compare
>>
>
> I've created and posted a patch here:
>
>http://trac.sagemath.org/sage_trac/ticket/1776
>
> Refereeing would be appreciated!
>
Works for me!
-
On 1/14/08, John Cremona <[EMAIL PROTECTED]> wrote:
>
> Jaap is right:
>
> Compare
>
I've created and posted a patch here:
http://trac.sagemath.org/sage_trac/ticket/1776
Refereeing would be appreciated!
> [EMAIL PROTECTED]
> --
On 1/14/08, John Cremona <[EMAIL PROTECTED]> wrote:
>
> Jaap is right:
>
> Compare
Excellent work tracking that down, which I would have never noticed.
sage: preparse('f(x) = x')
'_=var("x");f=symbolic_expression(x).function(x)'
sage: preparse('f(x) =+x')
'f(x) =+x'
sage: preparse('f(x) =-x')
'
Jaap is right:
Compare
[EMAIL PROTECTED]
--
| SAGE Version 2.9.3, Release Date: 2008-01-05 |
| Type notebook() for the GUI, and license() for information.|
--
William Stein wrote:
> On 1/14/08, Jason Grout <[EMAIL PROTECTED]> wrote:
>> I noticed that the following gives an error in Sage 2.9:
>>
>> sage: f(x)=-x
>>
>> File "", line 1
>> : can't assign to function call (> console>, line 1)
On 1/14/08, Jason Grout <[EMAIL PROTECTED]> wrote:
>
> John Cremona wrote:
> > The problem is surely that the pieces f1a etc are just Python
> > lambda-functions, yet the integral() method is being called on each of
> > these in the line
> > return sum([funcs[i].integral(x,invs[i][0],invs[i][1]) f
John Cremona wrote:
> The problem is surely that the pieces f1a etc are just Python
> lambda-functions, yet the integral() method is being called on each of
> these in the line
> return sum([funcs[i].integral(x,invs[i][0],invs[i][1]) for i in range(n)])
> so the problem arises since you are asking
The problem is surely that the pieces f1a etc are just Python
lambda-functions, yet the integral() method is being called on each of
these in the line
return sum([funcs[i].integral(x,invs[i][0],invs[i][1]) for i in range(n)])
so the problem arises since you are asking to integrate each funcs[i]
bu
At the moment,
(a) "piecewise" is only set up for piecewise polynomials,
(b) the "integrate" command is "integral".
So, for your function (which is piecewise polynomial), this should
work:
sage: f1a = lambda x: -x+1; f1b = lambda x: x+1
sage: f2a = lambda x : -(x - 2) - 1; f2b = lambda x : (x - 2
10 matches
Mail list logo
