- #1
mpowers
- 4
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I have a system of spatial ODEs to solve... Actually a DAE system, but here's the issue:
The equations are vaild over a specific domain, x = 0..L
The equations are only bound at one point (thier "initial point") but at either 0 or L
f1(0)=0
f2(0)=100
f3(L)=0
f4(L)=100
(also an algebraic expression that links all of the functions)
Essentially, those functions bound at L are moving "backwards" with respect to those bound at 0.
My question is, is this an initial value problem, or a boundary value problem? I started in MAPLE, and it decided (automatically) that it was a BVP. In MATLAB I am attempting to use bvp4c to come up with a solution, but is it really even a BVP if it only has one boundary condition, essentially an initial conditition, but defined at different spatial coordinates for different functions?
Your insight is appreciated.
The equations are vaild over a specific domain, x = 0..L
The equations are only bound at one point (thier "initial point") but at either 0 or L
f1(0)=0
f2(0)=100
f3(L)=0
f4(L)=100
(also an algebraic expression that links all of the functions)
Essentially, those functions bound at L are moving "backwards" with respect to those bound at 0.
My question is, is this an initial value problem, or a boundary value problem? I started in MAPLE, and it decided (automatically) that it was a BVP. In MATLAB I am attempting to use bvp4c to come up with a solution, but is it really even a BVP if it only has one boundary condition, essentially an initial conditition, but defined at different spatial coordinates for different functions?
Your insight is appreciated.