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Question: Resolving a system with initial conditions on x,y, x' and y'

Question:Resolving a system with initial conditions on x,y, x' and y'

Murmandamus 5 Maple
error solve condition deplot
December 23 2012
1

Hi,

 

I'm trying to resolve a problem in physics (movement of a particle in a magnetic field) and plot it. I need initial conditions on both (x,y) and (x',y') but when I'm trying to put the four conditions in the initial list of DEplot, a mysterious mistake arises :

 

Error, (in dsolve/numeric/process_input) invalid specification of initial conditions, got {0 = 0, 0 = 1}

 

But here is my worksheet :

 

with(linalg):

with(DEtools):

 

 

What should I do to solve this problem ? I've copied the line for DEplot from the help page, but I haven't seen in there a possible solution to my problem.

 

Thanks in advance if you can help me !
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