#8862: failing resolution of a nonlinear system by solve
-----------------------------------+----------------------------------------
Reporter: casamayou | Owner: burcin
Type: enhancement | Status: new
Priority: minor | Milestone: sage-4.4.2
Component: calculus | Keywords: solve
Author: Alexandre Casamayou | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
-----------------------------------+----------------------------------------
We search the critical points of the function x|-> (x**2 + y**2)^x
This function has four critical points : ±(0,1) and ±(1/e,0)
However the function solve can not find any of this.
More, solve returns (0,0) which is not a critical point since f is not
differentiable at (0,0) !
{{{
sage: var('x y')
sage: f(x,y) = (x^2 + y^2)^x
sage: solve([diff(f(x,y), x), diff(f(x,y), y)], x, y)
[[x == 0, y == 0]]
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8862>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/sage-trac?hl=en.
