eurer
> >
> > On Tue, Jun 28, 2016 at 12:54 PM, Aaron Meurer > wrote:
> >> According to checkodesol(paraChute, solution), the solution is correct.
> >>
> >> Aaron Meurer
> >>
> >> On Tue, Jun 28, 2016 at 2:13 AM, Dan Lewis > w
Hi folks,
Looks like sympy/dsolve produces an incorrect solution to an ODE:
from sympy import *
mass, g, b, t = symbols('mass g b t')
v, x = symbols('v x', cls=Function)
paraChute = mass*v(t).diff(t)-mass*g+b*(v(t))**2
solution = dsolve(paraChute,v(t),hint='lie_group')
solution
Out
