Re: [sympy] SymPy 1.10rc3 release candidate released
It's true that Eq() is not really an equation because it works like a
boolean, but it's also the only equation object SymPy has. The reason
dsolve() and solve() accept Eq() is because they solve equations, so it
makes sense for them to accept an equation. laplace_transform() on the
other hand operates on an expression, so it's not necessarily the case that
it should operate on equations.
Aaron Meurer
On Sat, Feb 26, 2022 at 1:50 PM Eric Barth wrote:
> oh, gosh. Thank you Jonathan!
> Thanks for bringing me up to speed on this issue.
> My thought was simply to make laplace_tranform() usage more closely match
> the documentation for sympy.dsolve(), which suggests sympy.Eq() for
> equations.
> Best wishes, Eric
>
> On Sat, Feb 26, 2022 at 3:31 PM gu...@uwosh.edu wrote:
>
>> Eric,
>>
>> Please be aware that sympy.Equality (.Eq) is not an equation. It is a
>> logical statement that evaluates to True or False. If it can be evaluated
>> it will collapse to that. If having an entity that behaves as an equation
>> is important to you please help to make it so by contributing to the
>> discussion and efforts surrounding this draft symPEP (
>> https://github.com/sympy/SymPEPs/pull/1) and this PR(
>> https://github.com/sympy/sympy/pull/21333).
>>
>> Regards,
>> Jonathan
>>
>> On Saturday, February 26, 2022 at 2:16:28 PM UTC-6 ejb...@gmail.com
>> wrote:
>>
>>> Thank you! I'm especially grateful for the updates to
>>> laplace_transform() in sympy-1.10rc3
>>>
>>> One (simple?) thing I ask you to consider:
>>> Please make laplace_transform() accommodate equations as input.
>>>
>>> Here's what I see with sympy-1.10rc3
>>>
>>> import sympy
>>> t,s = sympy.symbols("t s")
>>> x = sympy.Function("x")
>>> de = sympy.Eq(x(t).diff(t),x(t))
>>> sympy.laplace_transform(de,t,s) AttributeError: 'Equality' object
>>> has no attribute 'as_independent'
>>>
>>> a quick might be:
>>> def lap(eqn,s,t):
>>> from sympy import Equality, Eq, laplace_transform
>>> if isinstance(eqn,Equality):
>>> return
>>> Eq(laplace_transform(eqn.lhs,t,s),laplace_transform(eqn.rhs,t,s))
>>> else:
>>> return laplace_transform(eqn,t,s)
>>>
>>> lap(de,s,t)
>>> Out[5]: Eq(s*LaplaceTransform(x(t), t, s) - x(0),
>>> LaplaceTransform(x(t), t, s))
>>>
>>> best wishes,
>>> Eric
>>>
>>> On Sat, Feb 26, 2022 at 1:43 PM Oscar Benjamin
>>> wrote:
>>>
Hi all,
I've just released SymPy 1.10rc3 release candidate.
Following the previous release 1.10rc2 release candidate a couple of
regressions were reported:
https://github.com/sympy/sympy/issues/23144
https://github.com/sympy/sympy/issues/23148
Thanks to Matthias Koeppe and Clément Robert for testing the release
candidate with the downstream SAGE and unyt libraries and also Paul
Spiering for helping to fix these issues. These have now been fixed
and the fixes backported to the 1.10 release branch so I've made a new
release candidate with the fixes.
You can install SymPy 1.10rc3 with
pip install -U --pre sympy
You can also download the release files from GitHub:
https://github.com/sympy/sympy/releases/tag/sympy-1.10rc3
Please test this release out in particular with downstream libraries.
I'm going to leave it a few days and then if no further issues are
reported I'll release this as 1.10 final.
Oscar
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.
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Re: [sympy] SymPy 1.10rc3 release candidate released
Hi Eric,
At this stage in the release cycle I don't want to add any new
features. Ideally if there are no new bugs then I don't want to make
any changes at all before releasing 1.10. New changes can go into the
master branch though and those will be features for sympy 1.11.
Oscar
On Sat, 26 Feb 2022 at 20:50, Eric Barth wrote:
>
> oh, gosh. Thank you Jonathan!
> Thanks for bringing me up to speed on this issue.
> My thought was simply to make laplace_tranform() usage more closely match the
> documentation for sympy.dsolve(), which suggests sympy.Eq() for equations.
> Best wishes, Eric
>
> On Sat, Feb 26, 2022 at 3:31 PM gu...@uwosh.edu wrote:
>>
>> Eric,
>>
>> Please be aware that sympy.Equality (.Eq) is not an equation. It is a
>> logical statement that evaluates to True or False. If it can be evaluated it
>> will collapse to that. If having an entity that behaves as an equation is
>> important to you please help to make it so by contributing to the discussion
>> and efforts surrounding this draft symPEP
>> (https://github.com/sympy/SymPEPs/pull/1) and this
>> PR(https://github.com/sympy/sympy/pull/21333).
>>
>> Regards,
>> Jonathan
>>
>> On Saturday, February 26, 2022 at 2:16:28 PM UTC-6 ejb...@gmail.com wrote:
>>>
>>> Thank you! I'm especially grateful for the updates to laplace_transform()
>>> in sympy-1.10rc3
>>>
>>> One (simple?) thing I ask you to consider:
>>> Please make laplace_transform() accommodate equations as input.
>>>
>>> Here's what I see with sympy-1.10rc3
>>>
>>> import sympy
>>> t,s = sympy.symbols("t s")
>>> x = sympy.Function("x")
>>> de = sympy.Eq(x(t).diff(t),x(t))
>>> sympy.laplace_transform(de,t,s) AttributeError: 'Equality' object
>>> has no attribute 'as_independent'
>>>
>>> a quick might be:
>>> def lap(eqn,s,t):
>>> from sympy import Equality, Eq, laplace_transform
>>> if isinstance(eqn,Equality):
>>> return
>>> Eq(laplace_transform(eqn.lhs,t,s),laplace_transform(eqn.rhs,t,s))
>>> else:
>>> return laplace_transform(eqn,t,s)
>>>
>>> lap(de,s,t)
>>> Out[5]: Eq(s*LaplaceTransform(x(t), t, s) - x(0), LaplaceTransform(x(t),
>>> t, s))
>>>
>>> best wishes,
>>> Eric
>>>
>>> On Sat, Feb 26, 2022 at 1:43 PM Oscar Benjamin
>>> wrote:
Hi all,
I've just released SymPy 1.10rc3 release candidate.
Following the previous release 1.10rc2 release candidate a couple of
regressions were reported:
https://github.com/sympy/sympy/issues/23144
https://github.com/sympy/sympy/issues/23148
Thanks to Matthias Koeppe and Clément Robert for testing the release
candidate with the downstream SAGE and unyt libraries and also Paul
Spiering for helping to fix these issues. These have now been fixed
and the fixes backported to the 1.10 release branch so I've made a new
release candidate with the fixes.
You can install SymPy 1.10rc3 with
pip install -U --pre sympy
You can also download the release files from GitHub:
https://github.com/sympy/sympy/releases/tag/sympy-1.10rc3
Please test this release out in particular with downstream libraries.
I'm going to leave it a few days and then if no further issues are
reported I'll release this as 1.10 final.
Oscar
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>>
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>
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Re: [sympy] SymPy 1.10rc3 release candidate released
oh, gosh. Thank you Jonathan!
Thanks for bringing me up to speed on this issue.
My thought was simply to make laplace_tranform() usage more closely match
the documentation for sympy.dsolve(), which suggests sympy.Eq() for
equations.
Best wishes, Eric
On Sat, Feb 26, 2022 at 3:31 PM gu...@uwosh.edu wrote:
> Eric,
>
> Please be aware that sympy.Equality (.Eq) is not an equation. It is a
> logical statement that evaluates to True or False. If it can be evaluated
> it will collapse to that. If having an entity that behaves as an equation
> is important to you please help to make it so by contributing to the
> discussion and efforts surrounding this draft symPEP (
> https://github.com/sympy/SymPEPs/pull/1) and this PR(
> https://github.com/sympy/sympy/pull/21333).
>
> Regards,
> Jonathan
>
> On Saturday, February 26, 2022 at 2:16:28 PM UTC-6 ejb...@gmail.com wrote:
>
>> Thank you! I'm especially grateful for the updates to laplace_transform()
>> in sympy-1.10rc3
>>
>> One (simple?) thing I ask you to consider:
>> Please make laplace_transform() accommodate equations as input.
>>
>> Here's what I see with sympy-1.10rc3
>>
>> import sympy
>> t,s = sympy.symbols("t s")
>> x = sympy.Function("x")
>> de = sympy.Eq(x(t).diff(t),x(t))
>> sympy.laplace_transform(de,t,s) AttributeError: 'Equality' object
>> has no attribute 'as_independent'
>>
>> a quick might be:
>> def lap(eqn,s,t):
>> from sympy import Equality, Eq, laplace_transform
>> if isinstance(eqn,Equality):
>> return
>> Eq(laplace_transform(eqn.lhs,t,s),laplace_transform(eqn.rhs,t,s))
>> else:
>> return laplace_transform(eqn,t,s)
>>
>> lap(de,s,t)
>> Out[5]: Eq(s*LaplaceTransform(x(t), t, s) - x(0), LaplaceTransform(x(t),
>> t, s))
>>
>> best wishes,
>> Eric
>>
>> On Sat, Feb 26, 2022 at 1:43 PM Oscar Benjamin
>> wrote:
>>
>>> Hi all,
>>>
>>> I've just released SymPy 1.10rc3 release candidate.
>>>
>>> Following the previous release 1.10rc2 release candidate a couple of
>>> regressions were reported:
>>> https://github.com/sympy/sympy/issues/23144
>>> https://github.com/sympy/sympy/issues/23148
>>>
>>> Thanks to Matthias Koeppe and Clément Robert for testing the release
>>> candidate with the downstream SAGE and unyt libraries and also Paul
>>> Spiering for helping to fix these issues. These have now been fixed
>>> and the fixes backported to the 1.10 release branch so I've made a new
>>> release candidate with the fixes.
>>>
>>> You can install SymPy 1.10rc3 with
>>>
>>> pip install -U --pre sympy
>>>
>>> You can also download the release files from GitHub:
>>>
>>> https://github.com/sympy/sympy/releases/tag/sympy-1.10rc3
>>>
>>> Please test this release out in particular with downstream libraries.
>>> I'm going to leave it a few days and then if no further issues are
>>> reported I'll release this as 1.10 final.
>>>
>>> Oscar
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "sympy" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to sympy+un...@googlegroups.com.
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/sympy/CAHVvXxTAW54BxZBkS0jHnCmdh3hDKRt6DjTLJgNJzsQ5oGOMGg%40mail.gmail.com
>>> .
>>>
>> --
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Re: [sympy] SymPy 1.10rc3 release candidate released
Thank you! I'm especially grateful for the updates to laplace_transform()
in sympy-1.10rc3
One (simple?) thing I ask you to consider:
Please make laplace_transform() accommodate equations as input.
Here's what I see with sympy-1.10rc3
import sympy
t,s = sympy.symbols("t s")
x = sympy.Function("x")
de = sympy.Eq(x(t).diff(t),x(t))
sympy.laplace_transform(de,t,s) AttributeError: 'Equality' object
has no attribute 'as_independent'
a quick might be:
def lap(eqn,s,t):
from sympy import Equality, Eq, laplace_transform
if isinstance(eqn,Equality):
return
Eq(laplace_transform(eqn.lhs,t,s),laplace_transform(eqn.rhs,t,s))
else:
return laplace_transform(eqn,t,s)
lap(de,s,t)
Out[5]: Eq(s*LaplaceTransform(x(t), t, s) - x(0), LaplaceTransform(x(t),
t, s))
best wishes,
Eric
On Sat, Feb 26, 2022 at 1:43 PM Oscar Benjamin
wrote:
> Hi all,
>
> I've just released SymPy 1.10rc3 release candidate.
>
> Following the previous release 1.10rc2 release candidate a couple of
> regressions were reported:
> https://github.com/sympy/sympy/issues/23144
> https://github.com/sympy/sympy/issues/23148
>
> Thanks to Matthias Koeppe and Clément Robert for testing the release
> candidate with the downstream SAGE and unyt libraries and also Paul
> Spiering for helping to fix these issues. These have now been fixed
> and the fixes backported to the 1.10 release branch so I've made a new
> release candidate with the fixes.
>
> You can install SymPy 1.10rc3 with
>
> pip install -U --pre sympy
>
> You can also download the release files from GitHub:
>
> https://github.com/sympy/sympy/releases/tag/sympy-1.10rc3
>
> Please test this release out in particular with downstream libraries.
> I'm going to leave it a few days and then if no further issues are
> reported I'll release this as 1.10 final.
>
> Oscar
>
> --
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> .
>
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[sympy] SymPy 1.10rc3 release candidate released
Hi all, I've just released SymPy 1.10rc3 release candidate. Following the previous release 1.10rc2 release candidate a couple of regressions were reported: https://github.com/sympy/sympy/issues/23144 https://github.com/sympy/sympy/issues/23148 Thanks to Matthias Koeppe and Clément Robert for testing the release candidate with the downstream SAGE and unyt libraries and also Paul Spiering for helping to fix these issues. These have now been fixed and the fixes backported to the 1.10 release branch so I've made a new release candidate with the fixes. You can install SymPy 1.10rc3 with pip install -U --pre sympy You can also download the release files from GitHub: https://github.com/sympy/sympy/releases/tag/sympy-1.10rc3 Please test this release out in particular with downstream libraries. I'm going to leave it a few days and then if no further issues are reported I'll release this as 1.10 final. Oscar -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAHVvXxTAW54BxZBkS0jHnCmdh3hDKRt6DjTLJgNJzsQ5oGOMGg%40mail.gmail.com.
