225 messages from Google Code

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Re: Issue 3825 in sympy: solve(boolean) should raise an exception
Re: Issue 3818 in sympy: Undefined name _clear in sympify.py
Re: Issue 3821 in sympy: trigsimp does not simplify `cosh(z) - sinh(z)`
Re: Issue 3824 in sympy: substitution with a term containing a sqrt, sin
and cos fails
Re: Issue 3820 in sympy: Let factorint() act as an iterator
Re: Issue 3826 in sympy: trigsimp can't reverse tan double angle formula
Re: Issue 3823 in sympy: Tests run slower sometimes
Re: Issue 3811 in sympy: Matrix.eigenvects(simplify=True) does not simplify
Re: Issue 3816 in sympy: bracelets() is untested
Re: Issue 3810 in sympy: Wrong limit of expression equivalent to zeta(2*k)
Re: Issue 3806 in sympy: Comments on content in sympy's main page!
Re: Issue 3815 in sympy: Factors should not divide out zeros
Re: Issue 3814 in sympy: Relations on MatrixElements are broken.
Re: Issue 3809 in sympy: isprime can be faster
Re: Issue 3822 in sympy: Update mechanics printing to use the init_printing
architecture
Re: Issue 3808 in sympy: Calling .evalf() on indefinite integral throws an
exception
Re: Issue 3813 in sympy: rewrite should automatically chain rewrites
Re: Issue 3817 in sympy: test subprocesses miss interpreter args
Re: Issue 3819 in sympy: factor_nc gives bad results for non-commutative
symbols
Re: Issue 3807 in sympy: simplify(tan(zoo) + oo) throws an exception
Re: Issue 3833 in sympy: cancel anomoly
Re: Issue 3842 in sympy: wrong series expansion for arcsin(sqrt)**2
Re: Issue 3837 in sympy: RootOf.free_symbols gives wrong result
Re: Issue 3830 in sympy: SymPy Live settings should start closed in the
Sphinx extension
Re: Issue 3840 in sympy: ceiling.evalf doesn't work
Re: Issue 3832 in sympy: print exp(-1) as 1/E
Re: Issue 3836 in sympy: Problem with solve() in sympy live
Re: Issue 3838 in sympy: Problem with dsolve at SymPy Gamma
Re: Issue 3829 in sympy: Should Integral.subs (and Subs(Integral)) on an
indefinite integral return an integral with two limits
Re: Issue 3841 in sympy: d3 plotting backend
Re: Issue 3839 in sympy: Undefined Functions should not use the evalf name
lookup scheme
Re: Issue 3835 in sympy: Symbolic arguments to lambdify output
Re: Issue 3834 in sympy: atoms(exp) should return E, too
Re: Issue 3828 in sympy: Report versions of all external modules in test
Re: Issue 3827 in sympy: integrate(sqrt(x**2/((y - x)*(y + x))), x) showing
some infinities
Re: Issue 3831 in sympy: expand_func(binomial) is calling deprecated
__contains__
Re: Issue 3860 in sympy: Remove #doctest: +SKIP where possible
Re: Issue 3845 in sympy: dsolve gives different answers
Re: Issue 3846 in sympy: Enable Chrome tab search for sympygamma.com
Re: Issue 3856 in sympy: Identical dpll benchmark files
Re: Issue 3855 in sympy: Possible bug in geometry.polygon
Re: Issue 3848 in sympy: Step by step for hyperbolic functions
Re: Issue 3857 in sympy: Plot data as it is made
Re: Issue 3843 in sympy: value for quart constant is wrong in physics.units
Re: Issue 3862 in sympy: rcollect doesn't work as expected
Re: Issue 3854 in sympy: Improve the Tutorial
Re: Issue 3844 in sympy: rewriting of trigonometric functions needs to be
more robust in solve
Re: Issue 3858 in sympy: Calling subs() on a logical function sometimes
returns "bool" type and sometimes "sympy.core.numbers.Zero/One" type
Re: Issue 3847 in sympy: Derivatives of special functions, step by step
Re: Issue 3859 in sympy: dsolve-based integrator for integrals with
derivatives of undefined functions
Re: Issue 3864 in sympy: Variables do not mutate in SymPy Live
Re: Issue 3852 in sympy: Multiple integrals with piecewise should be smarter
Re: Issue 3849 in sympy: Sympy Gamma fails for sin(x)*cosh(x)+cos(x)*sinh(x)
Re: Issue 3850 in sympy: Document manualintegrate in integrate() docstring
Re: Issue 3853 in sympy: recognize elliptical integrals
Re: Issue 3863 in sympy: Deleting variables does not work in SymPy Live
Re: Issue 3861 in sympy: Change the default latex matrix type
Re: Issue 3851 in sympy: separable_reduced dsolve solution incorrect?
Re: Issue 3881 in sympy: Test failure in finite_rv
Re: Issue 3866 in sympy: Be smarter about Float('inf') and oo
Re: Issue 3876 in sympy: latex inconsistent with parentheses in powers
Re: Issue 3875 in sympy: evalf(subs) does not do the substitution
Re: Issue 3871 in sympy: sympy.printing.latex returns incorrect latex code
for symbol with symbolic superscript and subscript
Re: Issue 3870 in sympy: Can't pickle custom functions
Re: Issue 3877 in sympy: subs should recognize powers with exponent 1
Re: Issue 3865 in sympy: sympify crashes interpreter due to stack overflow
Re: Issue 3873 in sympy: series method doesn't correctly work for n=0
Re: Issue 3882 in sympy: divisors() is not type-consistent
Re: Issue 3869 in sympy: integrate the derivative of DiracDelta multipled
by some function
Re: Issue 3872 in sympy: Wrong printing in SymPy Live
Re: Issue 3880 in sympy: Test failure in hyperexpand
Re: Issue 3868 in sympy: Derivative wrt Function in Sum gives wrong result
Re: Issue 3878 in sympy: atan2 should be invertible by solve
Re: Issue 3883 in sympy: powdenest should not do too much
Re: Issue 3874 in sympy: Installing sympy as a dependency is broken
Re: Issue 3867 in sympy: diff shouldn't evaluate Sum
Re: Issue 3879 in sympy: Ellipse uses pyglet plotting
Re: Issue 3894 in sympy: diag does not work with int
Re: Issue 3899 in sympy: error: package directory 'sympy' does not exist
Re: Issue 3888 in sympy: Extra output from GA.reciprocal_frame
Re: Issue 3897 in sympy: integrate(1/x) gives log(x), not log(abs(x))
Re: Issue 3893 in sympy: MutableMatrix should be more consistant about in
place operations
Re: Issue 3898 in sympy: sift
Re: Issue 3885 in sympy: nullary functions should be allowed
Re: Issue 3896 in sympy: sum of three-phase cos^2 or cos^4 do not simplify
to 3/2 and 9/8, respectively
Re: Issue 3892 in sympy: powdenest won't denest a product base (even with
force=True)
Re: Issue 3890 in sympy: dsolve failing for an equality muliplied by -1
Re: Issue 3884 in sympy: Polygon should raise an error if sides cross
Re: Issue 3902 in sympy: simplify() should call piecewise_fold()
Re: Issue 3903 in sympy: Make init_printing() easier to import.
Re: Issue 3891 in sympy: series expands functions with square roots of
squares to too high a degree
Re: Issue 3900 in sympy: lseries expansion is wrong
Re: Issue 3901 in sympy: Improve integration of li(z)
Re: Issue 3904 in sympy: Use IPython display system automatically
Re: Issue 3895 in sympy: mathml cannot be doctested
Re: Issue 3887 in sympy: sympy 0.7.2 hangs when trying to solve a simple
algebraic equation
Re: Issue 3886 in sympy: Incorrect Piecewise result from risch_integrate
Re: Issue 3889 in sympy: expand_log(exp(x), force=True) should give x
Re: Issue 3918 in sympy: Another gamma limit
Re: Issue 3924 in sympy: Evaluation of nested sums.
Re: Issue 3917 in sympy: ask and assuming don't check for contradictory
assumptions
Re: Issue 3916 in sympy: Issues with assumptions
Re: Issue 3921 in sympy: slow tests fail with Python ground types (groebner)
Re: Issue 3911 in sympy: count_ops() returns 0 for logic expressions
Re: Issue 3922 in sympy: primepi is slow and takes too much memory
Re: Issue 3925 in sympy: Failing doctest in sympy/geometry/ellipse
Re: Issue 3923 in sympy: Calling cancel() on a Piecewise() instance.
Re: Issue 3910 in sympy: Make is_constant smarter about mpmath exceptions
Re: Issue 3914 in sympy: Prefer init_printing() to %load_ext
sympy.interactive.ipythonprinting
Re: Issue 3920 in sympy: Derivative wrt to the real or imag part of a
complex number
Re: Issue 3908 in sympy: `is_finite` is not used anymore. Remove any
mentions of it.
Re: Issue 3906 in sympy: ask should check for junk input
Re: Issue 3915 in sympy: Ideas for improving the tutorial
Re: Issue 3919 in sympy: preview viewer='file' without a specified filename
is deprecated
Re: Issue 3909 in sympy: Replace Mul with mul, Add with add, etc....
Re: Issue 3912 in sympy: Order terms don't cancel correctly
Re: Issue 3913 in sympy: Basic commands in mechanics fail on SymPy live
Re: Issue 3907 in sympy: constantsimp(C0*C1*x + C1**2,x,2) should simplify
things!
Re: Issue 3905 in sympy: Doctest failure in sympy.printing.dot.dotprint
Re: Issue 3946 in sympy: mpmath failure in test_sn_cn_dn_identities
Re: Issue 3941 in sympy: "Simplification" at SymPy Gamma doesn't make sense
Re: Issue 3948 in sympy: Python and gmpy ground type specific stuff
from "from sympy import *"
Re: Issue 3928 in sympy: Disable diff_wrt on non-undefined Functions
Re: Issue 3930 in sympy: Remove Python 2.5 stuff
Re: Issue 3932 in sympy: Gamma: Multiple ways to do the same thing
Re: Issue 3929 in sympy: New assumptions handlers should use logic
satisfiability as much as possible
Re: Issue 3927 in sympy: randprime is not uniform
Re: Issue 3939 in sympy: expand_complex(I**I**I) doesn't do it
Re: Issue 3944 in sympy: synonyms in gamma
Re: Issue 3945 in sympy: XFAIL should include the expected error
Re: Issue 3942 in sympy: pproblem with integration
Re: Issue 3947 in sympy: Roots of large numbers
Re: Issue 3938 in sympy: Solving Integrals that have Elliptic Integrals in
Solution
Re: Issue 3943 in sympy: Step-by-step integration in SymPy
Re: Issue 3926 in sympy: solve(x/y < 0) doesn't work
Re: Issue 3949 in sympy: bin/isympy -t python doesn't work anymore
Re: Issue 3931 in sympy: Gamma doesn't handle variable substitutions well
Re: Issue 3940 in sympy: Plotting tests fail with pyglet installed
Re: Issue 3934 in sympy: Test tarball whitelist on Travis
Re: Issue 3933 in sympy: Piecewise results returned from integrate should
be structured so the uncommon answer is in otherwise
Re: Issue 3937 in sympy: Enhancements on continued fractions
Re: Issue 3936 in sympy: Problems installing
Re: Issue 3935 in sympy: bin/doctest doc fails without a "sympy" directory
Re: Issue 3962 in sympy: SymPy Gamma should give numerical answer if the
result of an operation is a number
Re: Issue 3953 in sympy: simplify returns a complicated factored form
instead of a simpler result
Re: Issue 3959 in sympy: Travis issues with dependencies
Re: Issue 3950 in sympy: Speed of our prime algorithms
Re: Issue 3955 in sympy: sympy.Function.replace with the together() method
Re: Issue 3954 in sympy: simplify result of solve((-a*sin(theta)*cos(phi) -
b*cos(theta)*sin(phi)), theta)
Re: Issue 3966 in sympy: isympy starts very long when using IPython
(1.0-final)
Re: Issue 3970 in sympy: A bug on the degree function
Re: Issue 3964 in sympy: Test failure in master: __contains__ deprecated in
test_finite_rv.py
Re: Issue 3968 in sympy: factor_list() error Python3
Re: Issue 3951 in sympy: Make the IPython notebook LaTeX png printing work
on retina displays
Re: Issue 3957 in sympy: Url for random example at SymPy Gamma
Re: Issue 3967 in sympy: Clean up/complete continuous representations in
sympy.physics.quantum by merging PR 573
Re: Issue 3963 in sympy: Get rid of the "simplification" pane at SymPy Gamma
Re: Issue 3965 in sympy: sum of chebyshev polys fails to evaluate
Re: Issue 3956 in sympy: Failures in rsolve_hyper from test_rsolve_bulk()
Re: Issue 3958 in sympy: Deprecate TransformationSet in favor of ImageSet
Re: Issue 3961 in sympy: Gamma shows indefinite integral answer for
definite integral
Re: Issue 3960 in sympy: Spin uncoupling broken in 0.7.2
Re: Issue 3969 in sympy: Problem with caching and evaluating derivatives
with Dummy's
Re: Issue 3952 in sympy: Sympy cannot compute the integral of sqrt(tan(x))
Re: Issue 3985 in sympy: dnot integrate result
Re: Issue 3973 in sympy: as_coefficient sometimes doesn't work correctly
Re: Issue 3979 in sympy: Maximum recursion depth error in Sympy when using
non commutative symbols
Re: Issue 3983 in sympy: Issue with png pretty printing in Python 3
Re: Issue 3978 in sympy: Rational issue on simple expressions
Re: Issue 3977 in sympy: Plotting warning
Re: Issue 3989 in sympy: Simple limit fails
Re: Issue 3976 in sympy: Solve solves implicitly for Derivatives and
Integrals even when implicit is flagged as False.
Re: Issue 3975 in sympy: solve(floor (x)-5,x) should not raise
NotImplementedError
Re: Issue 3988 in sympy: The docs zip file unzips to
sympy-docs-html-nozip-0.7.3
Re: Issue 3987 in sympy: wrong tests in test_deltaproduct
Re: Issue 3991 in sympy: Conjugate transpose of scalar exponential treated
like matrix
Re: Issue 3986 in sympy: Parser should not try to parse longs in Python 3
Re: Issue 3984 in sympy: preview should use BytesIO instead of StringIO
Re: Issue 3992 in sympy: Missing special functions
Re: Issue 3990 in sympy: The --enhance-asserts option to bin/test gives the
wrong line numbers
Re: Issue 3981 in sympy: wrong integral
Re: Issue 3974 in sympy: Cancel button for SymPy Live
Re: Issue 3982 in sympy: Dsolve gives f(x) == -1 for x*(f(x).diff(x)) + 1 -
f(x)**2
Re: Issue 3971 in sympy: Missing eigenvalues
Re: Issue 3980 in sympy: Error in simplify for big expressions
Re: Issue 3972 in sympy: Don't install isympy3
Re: Issue 3994 in sympy: Error on diff equation
Re: Issue 4011 in sympy: ask.real wrong for some expressions
Re: Issue 4010 in sympy: integrate(sqrt(a**2/(a**2-x**2)), x) can't do it
Re: Issue 4002 in sympy: Factorizing rational functions
Re: Issue 3993 in sympy: Cannot solve x*y'' - xy' + y = 0
Re: Issue 4001 in sympy: n integrate error
Re: Issue 3997 in sympy: limit(x**-pi, x, 0, dir='-')
Re: Issue 4012 in sympy: TypeError: unbound method _latex() must be called
with TableForm instance as first argument (got LatexPrinter instance
instead)
Re: Issue 4000 in sympy: Geometric Algebra - gradient of an exponential
Re: Issue 4004 in sympy: diophantine((x*y+x*z+y*z)**2 - 4*x*y*z*(x+y+z))
not implemented
Re: Issue 3995 in sympy: Expectation object
Re: Issue 3996 in sympy: Expectation of product of independent random
expressions
Re: Issue 4006 in sympy: Add branches of LambertW
Re: Issue 4003 in sympy: Cannot return general quartic solution
Re: Issue 4005 in sympy: diophantine(x**3-4*x*y**2+y**3-1)
Re: Issue 4008 in sympy: geometric algebra doesn't seem to work
Re: Issue 4013 in sympy: Allow to choose a custom printer in init_printing
Re: Issue 4009 in sympy: Incorrect behaviour in simplify when used with And
and Equality
Re: Issue 4007 in sympy: Incorrect Real & Imaginary parts of Irrational
functions
Re: Issue 3999 in sympy: Incorrect expression resulting from integral
evaluation
Re: Issue 3998 in sympy: summation(x**n/n, (n, 1, 400)) hangs
Re: Issue 4029 in sympy: documentation error
Re: Issue 4018 in sympy: pretty printing of 2 + Eq(x, 0)
Re: Issue 4027 in sympy: sophomore's dream
Re: Issue 4030 in sympy: Sympy hangs on fairly simple expression
Re: Issue 4019 in sympy: divisors could use a 'pairs' flag
Re: Issue 4020 in sympy: Nondeterminism in integral of tanh(x)
Re: Issue 4028 in sympy: Permutation * PermutationGroup should give the
coset
Re: Issue 4017 in sympy: Solve rounds small coefficients to zero
Re: Issue 4016 in sympy: Parser fails to parse pi with
implicit_multiplication
Re: Issue 4023 in sympy: solve provides the error:
sympy.polys.polyerrors.PolynomialError: only univariate polynomials are
allowed
Re: Issue 4025 in sympy: Remove the ClassRegistry
Re: Issue 4021 in sympy: latex printing of Derivative
Re: Issue 4022 in sympy: powdenest won't denest a power
Re: Issue 4015 in sympy: variable appearing after semicolon in sympy live
isn't printed
Re: Issue 4014 in sympy: minimal_polynomial(nsimplify(pi,
tolerance=0.000000001)) hangs
Re: Issue 4031 in sympy: Definite integral returns an answer with
indefinite integrals
Re: Issue 4024 in sympy: logcombine not working on some inputs
Re: Issue 4026 in sympy: stats errors with floating point parameters in
Normal and density