[sage-support] Re: Solving a 2nd order linear ODE with initial conditions

2009-02-06 Thread Robert Bradshaw
On Feb 1, 2009, at 3:42 PM, David Joyner wrote: On Sun, Feb 1, 2009 at 5:34 PM, Christophe Deroulers christophe.deroulers__ggsa...@normalesup.org wrote: When one looks at what Sage sends to Maxima when desolve(diff(y,x, 2)+y(x)==0,y,[0,3,2]) is called, it turns out that Maxima receives

[sage-support] Re: Solving a 2nd order linear ODE with initial conditions

2009-02-01 Thread Christophe Deroulers
On Jan 21, 3:05 am, David Joyner wdjoy...@gmail.com wrote: (However, for other problems, this trick will not work so well.) I know about the problem with desolve and don't know how to fix it (though, it is actually documented that way, as you will see if you type desolve?). Sorry. I guess

[sage-support] Re: Solving a 2nd order linear ODE with initial conditions

2009-02-01 Thread David Joyner
On Sun, Feb 1, 2009 at 5:34 PM, Christophe Deroulers christophe.deroulers__ggsa...@normalesup.org wrote: When one looks at what Sage sends to Maxima when desolve(diff(y,x, 2)+y(x)==0,y,[0,3,2]) is called, it turns out that Maxima receives something like my_ode: diff('y(x),x,2) + 'y(x) =