Comment #1 on issue 2432 by smi...@gmail.com: Tests without assert
http://code.google.com/p/sympy/issues/detail?id=2432
I'll put a pull for the ones I found. Could you run the tests?
https://github.com/sympy/sympy/pull/370
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Status: Accepted
Owner: ness...@googlemail.com
CC: matt...@gmail.com
Labels: Type-Defect Priority-Medium Polynomial
New issue 2433 by ness...@googlemail.com: Polys module function poly()
needs gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
poly(1) and related calls fail.
Status: Accepted
Owner: j.yehde...@gmail.com
Labels: Type-Defect Priority-Medium
New issue 2434 by j.yehde...@gmail.com: Polynomials are sorted incorrectly
w.r.t. the grevlex term order
http://code.google.com/p/sympy/issues/detail?id=2434
Sorting polynomials wrt the grevlex term order gives
Comment #1 on issue 2434 by j.yehde...@gmail.com: Polynomials are sorted
incorrectly w.r.t. the grevlex term order
http://code.google.com/p/sympy/issues/detail?id=2434
I believe I know why it doesn't work: Polynomials (at least sd polynomials)
are sorted via
def sdp_sort(f, O):
Sort
Comment #2 on issue 2434 by j.yehde...@gmail.com: Polynomials are sorted
incorrectly w.r.t. the grevlex term order
http://code.google.com/p/sympy/issues/detail?id=2434
I believe I know why it doesn't work: Polynomials (at least sd polynomials)
are sorted via
def sdp_sort(f, O):
Sort
Comment #1 on issue 2433 by ness...@googlemail.com: Polys module function
poly() needs gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
Also, it is slightly unfortunate then when generators *are* passed, and the
coefficients contain irrationals like 2**(S(1)/3), then
Updates:
Status: Started
Comment #4 on issue 2415 by ronan.l...@gmail.com: Poly(x, x) * I != I *
Poly(x, x)
http://code.google.com/p/sympy/issues/detail?id=2415
This is an important issue. And PR #359
[https://github.com/sympy/sympy/pull/359] fixes it. The only problem is
that
Status: Accepted
Owner: sherjilo...@gmail.com
Labels: Type-Defect Priority-High Milestone-Release0.7.0
New issue 2435 by sherjilo...@gmail.com: Cholesky Decomposition methods to
be added in Matrix
http://code.google.com/p/sympy/issues/detail?id=2435
Cholesky decomposition is theoretically
Updates:
Labels: NeedsReview
Comment #5 on issue 2371 by ronan.l...@gmail.com: Completely untested
modules in sympy.polys
http://code.google.com/p/sympy/issues/detail?id=2371
This is public code, since it's accessible via public names, and the Repr
option is actually imported but
Status: Accepted
Owner: renato.c...@gmail.com
Labels: Type-Defect Priority-Medium EasyToFix Printing
New issue 2436 by renato.c...@gmail.com: eval(str(Derivative()))
http://code.google.com/p/sympy/issues/detail?id=2436
str(Derivative(f(x), x))
'D(f(x), x)'
eval(_)
NameError: name 'D' is not
Updates:
Status: Fixed
Comment #3 on issue 2218 by renato.c...@gmail.com: Derivative issues
http://code.google.com/p/sympy/issues/detail?id=2218
Fixed in c20062e7 and 2361dd86.
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Comment #13 on issue 2388 by ronan.l...@gmail.com: The value of str(expr)
depends on a global setting
http://code.google.com/p/sympy/issues/detail?id=2388
It doesn't seem to actually be a bug in Python - I searched through the
tracker. From the discussions linked, it seems to be considered
Comment #2 on issue 2421 by smi...@gmail.com: python(expr) issues
http://code.google.com/p/sympy/issues/detail?id=2421
yes, for sqrt see issue 2359
There is also an issue for Piecewise: the python and str are the same.
Piecewise((1, [0, 1)))
print python(_)
e = Piecewise((1, [0,
Updates:
Labels: NeedsReview j.yehdegho
Comment #3 on issue 2434 by asmeurer: Polynomials are sorted incorrectly
w.r.t. the grevlex term order
http://code.google.com/p/sympy/issues/detail?id=2434
https://github.com/sympy/sympy/pull/371
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Comment #20 on issue 2308 by smi...@gmail.com: Should we rename
primitive()? (and Expr.primitive() should call primitive())
http://code.google.com/p/sympy/issues/detail?id=2308
Why shouldn't `(2*x/3 + 4*y/9).primitive()` give `(2/3, x + 2*y/3)`? I
don't know much about the algebra fields,
Comment #2 on issue 2433 by asmeurer: Polys module function poly() needs
gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
I think the gens kwarg should do it, i.e.,
In [7]: Poly(x*y, gens=[x])
Out[7]: Poly(y*x, x, domain='ZZ[y]')
But poly() should have a *gens anyway.
Comment #5 on issue 2415 by asmeurer: Poly(x, x) * I != I * Poly(x, x)
http://code.google.com/p/sympy/issues/detail?id=2415
I say just XFAIL the match test. The only way to fix that is to implement
matching in Poly.
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Updates:
Labels: -Milestone-Release0.7.0 Milestone-Release0.7.1 NeedsReview
sherjilozair
Comment #1 on issue 2435 by asmeurer: Cholesky Decomposition methods to be
added in Matrix
http://code.google.com/p/sympy/issues/detail?id=2435
What pull request is this?
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Comment #1 on issue 2436 by asmeurer: eval(str(Derivative()))
http://code.google.com/p/sympy/issues/detail?id=2436
By the way, if we do my idea from 1620, that would fix it too.
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Comment #14 on issue 2388 by asmeurer: The value of str(expr) depends on a
global setting
http://code.google.com/p/sympy/issues/detail?id=2388
Well, the Python guys don't consider it to be a bug per se, but I
definitely do.
If we make __repr__ == srepr, then [10] below would give the
Comment #3 on issue 2421 by smi...@gmail.com: python(expr) issues
http://code.google.com/p/sympy/issues/detail?id=2421
The problem in the last comment is that you couldn't run that as python
code and have it work.
Also, there is a strange error when trying to S to srepr form of piecewise:
Comment #4 on issue 2421 by asmeurer: python(expr) issues
http://code.google.com/p/sympy/issues/detail?id=2421
It's probably because it's printing as Function('ExprCondPair') (see the
return from srepr()).
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Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 2437 by memm...@gmail.com: poly.subs doesn't work well with
mpmath findroot
http://code.google.com/p/sympy/issues/detail?id=2437
Defining a symbolic polynomial and using this within mpmath's findroot
function doesn't
Comment #5 on issue 2421 by smi...@gmail.com: python(expr) issues
http://code.google.com/p/sympy/issues/detail?id=2421
That's what I though, but cos() prints the same way.
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Comment #2 on issue 2435 by sherjilo...@gmail.com: Cholesky Decomposition
methods to be added in Matrix
http://code.google.com/p/sympy/issues/detail?id=2435
Aaron, Can't we make it to this release ?
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Comment #3 on issue 2435 by sherjilo...@gmail.com: Cholesky Decomposition
methods to be added in Matrix
http://code.google.com/p/sympy/issues/detail?id=2435
https://github.com/sympy/sympy/pull/184
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Comment #4 on issue 2435 by asmeurer: Cholesky Decomposition methods to be
added in Matrix
http://code.google.com/p/sympy/issues/detail?id=2435
We can, if it gets in soon enough, but the Milestone-Release0.7.0 tag is
for issues that block the release, which does not describe this issue.
Comment #15 on issue 2388 by Vinzent.Steinberg: The value of str(expr)
depends on a global setting
http://code.google.com/p/sympy/issues/detail?id=2388
I remember the discussion. Basically they said that str(list(...)) will
always use repr() on the content of the list. This is why we
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 2438 by five...@gmail.com: repr() does not eval() to the same
value
http://code.google.com/p/sympy/issues/detail?id=2438
a = Symbol('a')
b = a/(2*a)
print (b, eval(repr(b))) # (1/2, 0)
from __future__ import division
print
Comment #21 on issue 2307 by matt...@gmail.com: Duplicate methods:
as_coeff_mul and as_coeff_Mul
http://code.google.com/p/sympy/issues/detail?id=2307
btw. One more place where as_coeff_Capital_letter is useful is new
combsimp(), but as we don't have as_coeff_Add and future of
Comment #3 on issue 2433 by matt...@gmail.com: Polys module function poly()
needs gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
To construct polynomials you should really use Poly. poly() is a
replacement for expand() in cases where expand is too slow. After all I
Status: New
Owner: matt...@gmail.com
Labels: Type-Defect Priority-Medium Simplify
New issue 2439 by matt...@gmail.com: collect() should allow to apply a
function to coefficients
http://code.google.com/p/sympy/issues/detail?id=2439
I have the following expression:
In [1]: var('a')
Out[1]: a
Updates:
Status: Started
Owner: matt...@gmail.com
Cc: -matt...@gmail.com
Labels: Milestone-Release0.7.0 NeedsReview
Comment #4 on issue 2433 by matt...@gmail.com: Polys module function poly()
needs gens argument
Comment #5 on issue 2433 by asmeurer: Polys module function poly() needs
gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
Why does Poly not just do what poly() does? I was telling him to use
poly() because his code was too slow with Poly().
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Comment #6 on issue 2421 by asmeurer: python(expr) issues
http://code.google.com/p/sympy/issues/detail?id=2421
Well, that's probably wrong too. cos != Function('cos').
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Comment #1 on issue 2438 by asmeurer: repr() does not eval() to the same
value
http://code.google.com/p/sympy/issues/detail?id=2438
This is discussed over at issue 2388. We make __repr__ return the same
thing as __str__ because str(list) calls repr() on the elements. We have
the
Updates:
Status: Accepted
Comment #1 on issue 2439 by asmeurer: collect() should allow to apply a
function to coefficients
http://code.google.com/p/sympy/issues/detail?id=2439
Sounds like a good idea to me.
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Comment #22 on issue 2307 by asmeurer: Duplicate methods: as_coeff_mul and
as_coeff_Mul
http://code.google.com/p/sympy/issues/detail?id=2307
I thing we should either keep both or remove as_coeff_lowercase and just
require a call to .args in the second argument of as_coeff_Uppercase
Updates:
Labels: -NeedsReview
Comment #12 on issue 2338 by ronan.l...@gmail.com: Use predicates and
propositions instead of Assume objects
http://code.google.com/p/sympy/issues/detail?id=2338
The pull request is in, but 'ask(x, Q.even)' still needs to be replaced
with
Updates:
Labels: Ronan.Lamy asmeurer
Comment #5 on issue 2411 by asmeurer: Revert _op_priority deletion
http://code.google.com/p/sympy/issues/detail?id=2411
It seems that this will take longer to fix than we can afford before this
release, so I have reverted the _op_priority removal.
Comment #6 on issue 2433 by matt...@gmail.com: Polys module function poly()
needs gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
Because Poly is a constructor and it already does a lot. It can construct a
polynomial from a Poly instance, an expression, a list, tuple or
Comment #7 on issue 2433 by asmeurer: Polys module function poly() needs
gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
But that doesn't make sense. I don't see why Poly shouldn't be as smart as
poly() regarding this. You have to use poly() unless you want things to
Updates:
Labels: -Milestone-Release0.7.0 Milestone-Release0.7.1
Comment #8 on issue 2433 by asmeurer: Polys module function poly() needs
gens argument
http://code.google.com/p/sympy/issues/detail?id=2433
(No comment was entered for this change.)
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Updates:
Blockedon: 1620
Comment #4 on issue 879 by renato.c...@gmail.com: f(x).series(x, 0, 3)
doesn't work
http://code.google.com/p/sympy/issues/detail?id=879
(No comment was entered for this change.)
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Issue 1620: Allow derivatives of unknown functions evaluated at a point
http://code.google.com/p/sympy/issues/detail?id=1620
This issue is now blocking issue 879.
See http://code.google.com/p/sympy/issues/detail?id=879
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Comment #23 on issue 2307 by smi...@gmail.com: Duplicate methods:
as_coeff_mul and as_coeff_Mul
http://code.google.com/p/sympy/issues/detail?id=2307
It's a headache either way to do what the other is doing:
to miimic as_coeff_mul()
c, m = expr.as_coeff_Mul()
margs = Mul.make_args(m)
Updates:
Summary: as_coeff_mul()[0] != as_coeff_Mul()[0] when the coeff is Number
(not Rational)
Labels: -Priority-High -Milestone-Release0.7.0 -NeedsReview -smichr
Priority-Medium Milestone-Release0.7.1
Comment #24 on issue 2307 by asmeurer: as_coeff_mul()[0] !=
as_coeff_Mul()[0] when
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