On Tue, Aug 18, 2009 at 11:17 PM, rjf wrote:
>
> Plotting algebraic curves == an application to pure math? Is that what
> sympy is about?
we accept all reasonable patches to sympy, but my own need is in
physics and engineering. I don't need any algebraic curves at all, but
I also don't need facto
Plotting algebraic curves == an application to pure math? Is that what
sympy is about?
factoring is used in simplifying expressions in an attempt to reformat
them for easier comprehension.
Factoring is used by "solve" in the obvious way to separate solutions
exactly.
Factoring is sometimes used
On Tue, Aug 18, 2009 at 5:58 PM, Ondrej Certik wrote:
>
> On Tue, Aug 18, 2009 at 5:48 PM, William Stein wrote:
>>
>> On Tue, Aug 18, 2009 at 5:08 PM, Ondrej Certik wrote:
>>>
>>> On Tue, Aug 18, 2009 at 4:56 PM, rjf wrote:
At the risk of providing some information about what is pro
On Tue, Aug 18, 2009 at 5:48 PM, William Stein wrote:
>
> On Tue, Aug 18, 2009 at 5:08 PM, Ondrej Certik wrote:
>>
>> On Tue, Aug 18, 2009 at 4:56 PM, rjf wrote:
>>>
>>>
>>> At the risk of providing some information about what is probably going
>>> on,
>>> let me suggest the following.
>>>
>>> 1.
On Tue, Aug 18, 2009 at 5:08 PM, Ondrej Certik wrote:
>
> On Tue, Aug 18, 2009 at 4:56 PM, rjf wrote:
>>
>>
>> At the risk of providing some information about what is probably going
>> on,
>> let me suggest the following.
>>
>> 1. The expand() command in Maxima is almost always the wrong thing to
On Tue, Aug 18, 2009 at 4:56 PM, rjf wrote:
>
>
> At the risk of providing some information about what is probably going
> on,
> let me suggest the following.
>
> 1. The expand() command in Maxima is almost always the wrong thing to
> do if the argument is a polynomial.
> ratexpand() or ratsimp()
On Tue, Aug 18, 2009 at 4:56 PM, rjf wrote:
>
>
> At the risk of providing some information about what is probably going
> on,
> let me suggest the following.
>
> 1. The expand() command in Maxima is almost always the wrong thing to
> do if the argument is a polynomial.
> ratexpand() or ratsimp()
At the risk of providing some information about what is probably going
on,
let me suggest the following.
1. The expand() command in Maxima is almost always the wrong thing to
do if the argument is a polynomial.
ratexpand() or ratsimp() or rat() will be much faster. I suspect
that in your timin
>
> Huh? I don't understand what is wrong with the above output? Isn't
> it the unique correct factorization? Or is your point that factorization of
It's a correct factorization.
> elements of R[x,y,z] doesn't solve the problem you are really interested in?
Yes, I wanted to get exactly this
On Tue, Aug 18, 2009 at 9:13 AM, Ondrej Certik wrote:
>
> On Mon, Aug 17, 2009 at 9:41 PM, Ondrej Certik wrote:
>> On Mon, Aug 17, 2009 at 5:31 AM, William Stein wrote:
>>>
>>> On Mon, Aug 17, 2009 at 3:20 AM, Ondrej Certik wrote:
On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
>>>
On Tue, Aug 18, 2009 at 9:13 AM, Ondrej Certik wrote:
> On Mon, Aug 17, 2009 at 9:41 PM, Ondrej Certik wrote:
>> On Mon, Aug 17, 2009 at 5:31 AM, William Stein wrote:
>>>
>>> On Mon, Aug 17, 2009 at 3:20 AM, Ondrej Certik wrote:
On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
>
On Mon, Aug 17, 2009 at 9:41 PM, Ondrej Certik wrote:
> On Mon, Aug 17, 2009 at 5:31 AM, William Stein wrote:
>>
>> On Mon, Aug 17, 2009 at 3:20 AM, Ondrej Certik wrote:
>>>
>>> On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
On Mon, Aug 17, 2009 at 3:51 AM, William Stein wrote:
>
>
On Mon, Aug 17, 2009 at 5:31 AM, William Stein wrote:
>
> On Mon, Aug 17, 2009 at 3:20 AM, Ondrej Certik wrote:
>>
>> On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
>>> On Mon, Aug 17, 2009 at 3:51 AM, William Stein wrote:
On Mon, Aug 17, 2009 at 2:40 AM, Ondrej Certik wrote:
On Mon, Aug 17, 2009 at 3:20 AM, Ondrej Certik wrote:
>
> On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
>> On Mon, Aug 17, 2009 at 3:51 AM, William Stein wrote:
>>>
>>> On Mon, Aug 17, 2009 at 2:40 AM, Ondrej Certik wrote:
On Mon, Aug 17, 2009 at 2:26 AM, William Stein wrote:
>>>
On Mon, Aug 17, 2009 at 4:09 AM, Ondrej Certik wrote:
> On Mon, Aug 17, 2009 at 3:51 AM, William Stein wrote:
>>
>> On Mon, Aug 17, 2009 at 2:40 AM, Ondrej Certik wrote:
>>>
>>> On Mon, Aug 17, 2009 at 2:26 AM, William Stein wrote:
On Mon, Aug 17, 2009 at 1:14 AM, Ondrej Certik wrote:
>>
On Mon, Aug 17, 2009 at 3:51 AM, William Stein wrote:
>
> On Mon, Aug 17, 2009 at 2:40 AM, Ondrej Certik wrote:
>>
>> On Mon, Aug 17, 2009 at 2:26 AM, William Stein wrote:
>>>
>>> On Mon, Aug 17, 2009 at 1:14 AM, Ondrej Certik wrote:
Hi,
at the scipy 09 conference I am going to
On Mon, Aug 17, 2009 at 2:40 AM, Ondrej Certik wrote:
>
> On Mon, Aug 17, 2009 at 2:26 AM, William Stein wrote:
>>
>> On Mon, Aug 17, 2009 at 1:14 AM, Ondrej Certik wrote:
>>>
>>> Hi,
>>>
>>> at the scipy 09 conference I am going to compare Sage and sympy
>>> approaches to factoring (and timings)
On Mon, Aug 17, 2009 at 2:26 AM, William Stein wrote:
>
> On Mon, Aug 17, 2009 at 1:14 AM, Ondrej Certik wrote:
>>
>> Hi,
>>
>> at the scipy 09 conference I am going to compare Sage and sympy
>> approaches to factoring (and timings) and longer term approaches, so I
>> have a few questions about it
On Mon, Aug 17, 2009 at 1:14 AM, Ondrej Certik wrote:
>
> Hi,
>
> at the scipy 09 conference I am going to compare Sage and sympy
> approaches to factoring (and timings) and longer term approaches, so I
> have a few questions about it, so that I understand things correctly.
> If I do:
>
> sage: va
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