On Wed, Apr 22, 2009 at 8:36 AM, Ondrej Certik wrote:
> On Wed, Apr 22, 2009 at 5:21 AM, Ted Horst wrote:
>>
>> I've been using the mercurial mirror at http://hg.sympy.org/sympy-
>> git.hg and the last few days it has started growing multiple heads.
>> Did something go wrong with the git-mercuri
Ondrej Certik wrote:
> On Sun, May 3, 2009 at 9:25 AM, Akshay Srinivasan
> wrote:
>
>> Is there anyway I can replace functions without bothering about the
>> functional arguments? I mean say I have an expression like:
>>
>> expr=tan(x) + tan(y)
>>
>> I want to be able to do something like :
>>
On Sun, May 3, 2009 at 9:25 AM, Akshay Srinivasan
wrote:
>
> Is there anyway I can replace functions without bothering about the
> functional arguments? I mean say I have an expression like:
>
> expr=tan(x) + tan(y)
>
> I want to be able to do something like :
>
> expr.subs(tan(),sin()/cos())
>
>
On Sun, May 3, 2009 at 9:30 AM, Robert Kern wrote:
>
> On Sun, May 3, 2009 at 11:06, Robert Kern wrote:
>> On Sun, May 3, 2009 at 10:59, Ondrej Certik wrote:
>>
>>> Google app engine supports eval(), so we may just write a simple
>>> preparser based on the "re" module (also available on the app
On Sun, May 3, 2009 at 11:06, Robert Kern wrote:
> On Sun, May 3, 2009 at 10:59, Ondrej Certik wrote:
>
>> Google app engine supports eval(), so we may just write a simple
>> preparser based on the "re" module (also available on the app engine),
>> that converts things like 1/2 to Integer(1)/Int
Is there anyway I can replace functions without bothering about the
functional arguments? I mean say I have an expression like:
expr=tan(x) + tan(y)
I want to be able to do something like :
expr.subs(tan(),sin()/cos())
,to get:
sin(x)/cos(x) + sin(y)/cos(y)
,so that the respective functiona
On Sun, May 3, 2009 at 9:05 AM, antonio sacchi
wrote:
>
> if I found other error, Do I have to report it?
If you do, it'd be awesome. Every bug report is very valuable.
Ondrej
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On Sun, May 3, 2009 at 10:59, Ondrej Certik wrote:
> Google app engine supports eval(), so we may just write a simple
> preparser based on the "re" module (also available on the app engine),
> that converts things like 1/2 to Integer(1)/Integer(2) and "x" to
> Symbol("x") and we should be fine.
if I found other error, Do I have to report it?
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Hi,
currently sympy has this nice feature that it can parse any Python
expressions and convert things like 1/2 into Integer(1)/Integer(2):
In [2]: sympify("1/2+x+y+sin(z)")
Out[2]: 1/2 + x + y + sin(z)
This is implemented in sympy/core/ast_parser.py using python ast and
it has only about 70 lin
On Sun, May 3, 2009 at 8:40 AM, antonio sacchi
wrote:
>
> hi,
>
> maybe another limit error(?):
>
limit ((log(1+2*x)*(1+sin(2*x))-2*x)/(1-cos(2*x)),x,0)
> 0
>
> it should be 1
Yes, it seems like a bug. Please report it in our issues --- when I
get some time, I'll go over all the failing li
hi,
maybe another limit error(?):
>>> limit ((log(1+2*x)*(1+sin(2*x))-2*x)/(1-cos(2*x)),x,0)
0
it should be 1
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