Comment #2 on issue 2423 by sean.v@gmail.com: Rotation.d function
incorrect evaluation
http://code.google.com/p/sympy/issues/detail?id=2423
In looking back at this, both of the d functions for beta=pi/2 are correct,
the ones with beta=-pi/2 have the wrong sign.
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Updates:
Status: Fixed
Labels: -Milestone-Release0.7.0 -NeedsReview PassedReview
Comment #2 on issue 2484 by matt...@gmail.com: Create Poly by coefficients
fails
http://code.google.com/p/sympy/issues/detail?id=2484
This was fixed in df5412f.
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Status: Accepted
Owner: asmeurer
Labels: Type-Defect Priority-Medium Polynomial
New issue 2496 by asmeurer: Should mpmath use the polys ground types?
http://code.google.com/p/sympy/issues/detail?id=2496
Like the polys, if gmpy is installed, mpmath will automatically take
advantage of it. See
Comment #22 on issue 2482 by vlada.pe...@gmail.com: Stop bundling mpmath
http://code.google.com/p/sympy/issues/detail?id=2482
First of all, why would mpmath become incompatible? It's a library like any
other, it should first deprecate functions for a few releases and only then
remove them
Updates:
Status: Fixed
Comment #6 on issue 2077 by smi...@gmail.com: classify_ode() doesn't catch
a 1st_linear/separable ode
http://code.google.com/p/sympy/issues/detail?id=2077
(No comment was entered for this change.)
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Comment #2 on issue 2488 by smi...@gmail.com: SymPy 0.7.0
http://code.google.com/p/sympy/issues/detail?id=2488
The cls and seq are popped before making the call for the each_char
handling in symbols...this means that `symbols('fgh', cls=Function,
each_char=True)` will return 3 Symbols
Comment #3 on issue 2488 by asmeurer: SymPy 0.7.0
http://code.google.com/p/sympy/issues/detail?id=2488
That entier pull request has been cherry-picked into 0.7.0.
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Comment #4 on issue 2488 by asmeurer: SymPy 0.7.0
http://code.google.com/p/sympy/issues/detail?id=2488
*entire
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Updates:
Status: Fixed
Comment #34 on issue 1620 by smi...@gmail.com: Allow derivatives of unknown
functions evaluated at a point
http://code.google.com/p/sympy/issues/detail?id=1620
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Updates:
Status: Fixed
Comment #6 on issue 2491 by smi...@gmail.com: order_iter and iterable
function
http://code.google.com/p/sympy/issues/detail?id=2491
(No comment was entered for this change.)
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Status: Fixed
Comment #10 on issue 1660 by renato.c...@gmail.com: [PATCH] derivatives of
composed functions should not evaluate to a derivative in terms of a
function
http://code.google.com/p/sympy/issues/detail?id=1660
This has been fixed in 89adffcd. Now g(f(x)).diff(x)
Comment #27 on issue 1525 by renato.c...@gmail.com: No integration by
substitution
http://code.google.com/p/sympy/issues/detail?id=1525
The pull request above is in, and issue 1620 is fixed. Is there something
to do in this issue? BTW, this is what I think the OP meant in the first
Updates:
Status: Fixed
Labels: -NeedsReview PassedReview
Comment #13 on issue 1435 by renato.c...@gmail.com: f(x, y).diff(x, y) -
f(x, y).diff(y, x) should simplify to zero
http://code.google.com/p/sympy/issues/detail?id=1435
This has been fixed in 53fbd25.
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Comment #6 on issue 2442 by renato.c...@gmail.com: Why does Lambda use
Dummys?
http://code.google.com/p/sympy/issues/detail?id=2442
(No comment was entered for this change.)
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Blockedon: 2442
Comment #11 on issue 2440 by renato.c...@gmail.com: Equal Integrals compare
different when using different variables
http://code.google.com/p/sympy/issues/detail?id=2440
(No comment was entered for this change.)
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Issue 2442: Why does Lambda use Dummys?
http://code.google.com/p/sympy/issues/detail?id=2442
This issue is now blocking issue 2440.
See http://code.google.com/p/sympy/issues/detail?id=2440
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Comment #6 on issue 1621 by renato.c...@gmail.com: Initial conditions in
dsolve()
http://code.google.com/p/sympy/issues/detail?id=1621
Another question: what should the interface be? The only way to keep full
compatibility is accepting initial conditions in kwargs, but it feels more
Updates:
Status: Fixed
Comment #7 on issue 597 by renato.c...@gmail.com: Unable to subsitute
derivatives
http://code.google.com/p/sympy/issues/detail?id=597
This works in master now after issue 1620 was fixed:
diff(f(x**3), x).subs(x**3, y)
2/3 ⎛d ⎞│
3⋅y ⋅⎜──(f(1))⎟│
Comment #7 on issue 7 by smi...@gmail.com: implement relations (, )
solving
http://code.google.com/p/sympy/issues/detail?id=7
The second case is also implemented:
solve(a a + 5)
True
Can this be closed?
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Comment #8 on issue 7 by matt...@gmail.com: implement relations (, )
solving
http://code.google.com/p/sympy/issues/detail?id=7
Most likely yes, because otherwise we won't be able to close this issue in
20 years.
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Status: Fixed
Comment #1 on issue 2426 by smi...@gmail.com: solve uses .degree instead
of .degree()
http://code.google.com/p/sympy/issues/detail?id=2426
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Updates:
Status: Duplicate
Mergedinto: 2098
Comment #2 on issue 2410 by smi...@gmail.com: Setting range for variables
http://code.google.com/p/sympy/issues/detail?id=2410
(No comment was entered for this change.)
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Comment #5 on issue 2098 by smi...@gmail.com: solve(x**2+1,x) does not
check if x is real.
http://code.google.com/p/sympy/issues/detail?id=2098
Issue 2410 has been merged into this issue.
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Comment #2 on issue 2134 by asmeurer: Derivative of Lambda does not work
http://code.google.com/p/sympy/issues/detail?id=2134
Ah good point. I guess it should raise an error, and definitely implement
fdiff.
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Comment #5 on issue 2488 by asmeurer: SymPy 0.7.0
http://code.google.com/p/sympy/issues/detail?id=2488
I've added a commit that disables the mpmath test_visualization test, which
was either printing a message to the terminal or opening a plot, depending
on whether matplotlib and pylab were
Comment #7 on issue 1621 by asmeurer: Initial conditions in dsolve()
http://code.google.com/p/sympy/issues/detail?id=1621
I think the syntax should be dsolve(ode, f(x), ics={f(0):1, f'(0):2}).
As far as solving, I think we should just try to solve for the constants
with what's given. If it
Comment #8 on issue 1621 by asmeurer: Initial conditions in dsolve()
http://code.google.com/p/sympy/issues/detail?id=1621
By the way, you can't have dsolve(**ics) anyway because named keyword args
have to be valid Python identifiers, not f(0).
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Comment #9 on issue 1621 by renato.c...@gmail.com: Initial conditions in
dsolve()
http://code.google.com/p/sympy/issues/detail?id=1621
By the way, the nicer syntax from issue 1620 would make these much easier
to enter for derivatives (right now you would have to call .subs, which
is a
Updates:
Cc: ondrej.c...@gmail.com
Comment #3 on issue 2423 by ondrej.c...@gmail.com: Rotation.d function
incorrect evaluation
http://code.google.com/p/sympy/issues/detail?id=2423
Looking at the table 4.14 in Varshalovich, the values for beta=pi/2 are
correct.
There are no tables
Status: Accepted
Owner: asmeurer
Labels: Type-Enhancement Priority-Medium
New issue 2497 by asmeurer: Make Tuple do sequence repetition
http://code.google.com/p/sympy/issues/detail?id=2497
In [16]: Tuple(1, 2, 3)*2
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