ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Sat, 26 Oct 2013 10:07:06 +0200How to solve ODE y'y''+y''-xy'+y=0?https://ask.sagemath.org/question/10626/how-to-solve-ode-yyy-xyy0/How to find the solution for ode y'y''+y''-xy'+y=0?
y(x)=???
please help me.
i dont have any idea how to solve it.
because i never meet this kind of equation before.
thxSat, 26 Oct 2013 07:34:07 +0200https://ask.sagemath.org/question/10626/how-to-solve-ode-yyy-xyy0/Answer by tmonteil for <p>How to find the solution for ode y'y''+y''-xy'+y=0?
y(x)=???
please help me.
i dont have any idea how to solve it.
because i never meet this kind of equation before.
thx</p>
https://ask.sagemath.org/question/10626/how-to-solve-ode-yyy-xyy0/?answer=15611#post-id-15611Sage seems currently not able to solve this ODE symbolically nor numerically:
sage: x = var('x')
sage: y = function('y', x)
sage: desolve(diff(y,x)*diff(y,x,2) + diff(y,x,2) - x*diff(y,x) + y, y)
NotImplementedError: Maxima was unable to solve this ODE.
sage: desolve_rk4(diff(y,x)*diff(y,x,2) + diff(y,x,2) - x*diff(y,x) + y, y, ics=[1,1,1])
TypeError: Error executing code in Maxima
Sat, 26 Oct 2013 10:07:06 +0200https://ask.sagemath.org/question/10626/how-to-solve-ode-yyy-xyy0/?answer=15611#post-id-15611