It appears that it's a bug. If you have access to GitHub, report an
issue with the details. I'd recommend including the Mathematica result
so a test case can be made.
Thanks,
Tim.
On 24 Nov 2014, at 21:19, Yuxiang Wang wrote:
Hi Tim,
Thank you! I did try that, but it still hang there...
from sympy.abc import x, y, z, a, b, c
from sympy import solve, solve_poly_system
solve_poly_system([x+y+z-a, x*y+y*z+x*z-b, x*y*z-c], [x, y, z])
In fact, I had the impression that when I used the keyboard to
interrupt
the solve() earlier today, it showed it is trying to use the
polynomial
solver.
Shawn
On Monday, November 24, 2014 9:13:46 PM UTC-5, Tim Lahey wrote:
Hi,
You might try the polynomial module solve support. See,
http://docs.sympy.org/latest/modules/polys/basics.html#solving-equations
Cheers,
Tim.
On 24 Nov 2014, at 20:26, Yuxiang Wang wrote:
Hi all,
I have this equation, which is Vieta's formula and is polynomial.
SymPy code: didn't work... just hang there
from sympy.abc import x, y, z, a, b, c
from sympy import solve
solve([x+y+z-a, x*y+y*z+x*z-b, x*y*z-c], [x, y, z])
Mathematica worked.
Solve[{x + y + z == a, x y + y z + x z == b, x y z == c}, {x, y, z}]
I do know the answer of this equation, but I was wondering... this
seems to
be a question that should work in sympy because it does not appear
too
difficult to me - only polynomials. Any thoughts?
Shawn
--
You received this message because you are subscribed to the Google
Groups "sympy" group.
To unsubscribe from this group and stop receiving emails from it,
send
an email to [email protected] <javascript:>.
To post to this group, send email to [email protected]
<javascript:>.
Visit this group at http://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/8e42eaf3-da4e-47ff-b98b-df46d1fcf2d2%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google
Groups "sympy" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/ea90bce7-cca7-442e-a6e8-d95450c92c22%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
--
You received this message because you are subscribed to the Google Groups
"sympy" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sympy.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sympy/9EB7A128-1E4E-4BC5-A28C-FE343EB86F6F%40gmail.com.
For more options, visit https://groups.google.com/d/optout.
