> > Øyvind
I just set up an account with name smichr. Initial impressions of the
clean interface are good. Let me know what to do next.
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On Jul 18, 12:19 am, "Aaron S. Meurer" wrote:
> Testing what is the latest version (1d6bd1d), I get this failure:
>
> File
> "/users/aaronmeurer/documents/python/sympy/sympy/sympy/matrices/tests/test_matrices.py",
> line 489, in test_eigen
> ( 0, 1, [Matrix([ 0,-1, 1])])])
> AssertionErr
> I have just uploaded a ton of comments to GitHub (I decided to use GitHub
> instead of Smart Bear because, frankly, I like GitHub's interfact better).
> You can see them all here: http://github.com/smichr/sympy/comments.
> Unfortunately, there were only a few commits that both I had no prob
i get zero as well. although that i dont believe that is correct. see
below.
In [884]: x,a,m = symbols('x a m')
In [885]: pprint(Integral(sin(pi*x)*sin(pi*x),(x,0,1)).doit())
1/2
In [886]: pprint(Integral(sin(pi*x)*sin(m*pi*x),(x,0,1)).doit())
2
π⋅sin(π
Hi:
Does anyone know if there is a workaround for this error I get
(from running sympy in Sage)?It seems to be a known issue
http://code.google.com/p/sympy/issues/detail?id=1211
- David
sage: from sympy import Function, Derivative, dsolve, symbols
sage: from sympy.abc import x
sage: f = Functio
When you do
f = Function("f")(x)
you are already making f(x). You need to either just declare
f = Function("f")
or use what you have with
dsolve(Derivative(f, x, x) - k**2*f, f,
hint='nth_linear_constant_coeff_homogeneous')
Doing __call__ on f(x), i.e., f(x)(x), assumes that you are tryin
Thanks!
On Sun, Jul 18, 2010 at 5:55 PM, Aaron S. Meurer wrote:
> When you do
>
> f = Function("f")(x)
>
> you are already making f(x). You need to either just declare
>
> f = Function("f")
>
> or use what you have with
>
> dsolve(Derivative(f, x, x) - k**2*f, f,
> hint='nth_linear_constant_coe
I bisected it down to bf301ae59e0943496b2e859341fc9c5677db1b64. Looking
deeper, I get:
In [20]: i = canonicalize(M.eigenvects())
In [21]: j = canonicalize(
The canonicalize() function uses tuple(set()) to try to get a
canonical ordering. But apparently in Python 2.7, this ordering isn't
always the same on the same line in the same session. I think it
should just compare sets directly.
Aaron Meurer
On Jul 18, 4:50 pm, "Aaron S. Meurer" wrote:
> I
