Do you mean something like in the tutorial http://www.sagemath.org/doc/tut/node14.html or do you want something different?
On Thu, Nov 27, 2008 at 5:02 AM, pieter <[EMAIL PROTECTED]> wrote: > > Dear Sage users, > > Is it possible in Sage to define a function with the help of its > derivative? > > Example: > > Given the system of linear differential equations > > dy1(t)/dt = a(t)y1(t) + b(t)y2(t) > dy2(t)/dt = c(t)y1(t) + d(t)y2(t), > > where a, b, c, d are known functions of t. > > In Maple y1(t) and y2(t) can be defined as > > > define(y1, diff(y1(t), t) = a(t) * y1(t) + b(t) * y2(t)) > > define(y2, diff(y2(t), t) = c(t) * y1(t) + d(t) * y2(t)) > > In Maple it is possible to manipulate with y1(t) and y2(t) without > solving the system of equations. > > Does there exist a Sage-construct equivalent to the Maple-construct > given above? > > Regards, > Pieter > > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
