Status: Valid
Owner:
Labels: Type-Defect Priority-Medium
New issue 3667 by smi...@gmail.com: inconsistent output from solve
http://code.google.com/p/sympy/issues/detail?id=3667
I don't see why the output in one case is a list and in the other is a
dictionary
v = symbols('V_1:9')
solve(
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium
New issue 3666 by asmeu...@gmail.com: sympy_time.py and sympy_time_cache.py
do not work
http://code.google.com/p/sympy/issues/detail?id=3666
$python2.5 bin/sympy_time_cache.py
Traceback (most recent call last):
File "bin/sympy_ti
Updates:
Labels: EasyToFix
Comment #7 on issue 1696 by asmeu...@gmail.com: integral of heaviside
http://code.google.com/p/sympy/issues/detail?id=1696
But an algorithm to convert general piecewise expressions to use Heaviside
would be very useful. Because usually, integrate() has a bet
Comment #13 on issue 3141 by asmeu...@gmail.com: pyglet plotting fails -
possibly a problem in the way in which it is installed
http://code.google.com/p/sympy/issues/detail?id=3141
I never got Pyglet working (I am also on Mac OS X). My best suggestion is
to use the new plotting module, whi
Comment #4 on issue 3664 by mrock...@gmail.com: Make Symbol better for
subclasses
http://code.google.com/p/sympy/issues/detail?id=3664
Ah, 2*x is an excellent point. I now agree that the Symbol class is
necessary for operators. I'll change my extreme definition to
class Symbol(Expr):
Comment #3 on issue 3664 by asmeu...@gmail.com: Make Symbol better for
subclasses
http://code.google.com/p/sympy/issues/detail?id=3664
Well that's a bad idea. Nothing would work. 2*x would not work. Mul(2,
x).subs would work but not Mul(1, x).subs
The whole reason we require Basic args is
Comment #2 on issue 3664 by mrock...@gmail.com: Make Symbol better for
subclasses
http://code.google.com/p/sympy/issues/detail?id=3664
Here is a radically different design for the Symbol class:
Symbol = str
If new assumptions happened then we wouldn't need to store anything inside
Symbol
Comment #1 on issue 3664 by mrock...@gmail.com: Make Symbol better for
subclasses
http://code.google.com/p/sympy/issues/detail?id=3664
So I just tried replacing RandomSymbol(Expr) with RandomSymbol(Symbol) and
all of the tests pass. I don't remember the exact reason why this caused
an is
Comment #7 on issue 3512 by alessand...@gmail.com: solve is slow for a
simple set of equations.
http://code.google.com/p/sympy/issues/detail?id=3512
I report similar issues as described.
PYTHON SOLVE SEEMS TO BE MUCH MUCH SLOWER THAN SAGE SOLVE.
I have tried the options manual=True simplify=F
Status: Valid
Owner:
Labels: Type-Defect Priority-Medium EasyToFix
New issue 3665 by smi...@gmail.com: using "with" now that 2.4 support has
been dropped
http://code.google.com/p/sympy/issues/detail?id=3665
In risch.py there is a note
# TODO: DE.decrement_level() ... DE.increment_le
Updates:
Status: Fixed
Comment #7 on issue 3545 by smi...@gmail.com: solving a complicated
expression with square roots
http://code.google.com/p/sympy/issues/detail?id=3545
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Updates:
Status: Fixed
Comment #7 on issue 3653 by smi...@gmail.com: solve does not return zero
roots when solving a system of equation
http://code.google.com/p/sympy/issues/detail?id=3653
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