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Question: problem with dsolve command

Question:problem with dsolve command

haider 97
error
February 22 2010
0

I am trying to solve a set of 4 coupled ordinary differential equations, starting from certain set of initial conditions for certain parameter values.  i have to evolve the system for a very long time (higher number of iterates are needed).

For a certain set of initial conditions the following error occurs

"Error, (in sol12) cannot evaluate the solution further right of 2939.9221, probably a singularity"

what could be the possible way to get rid of this error.......

when i do the same calculation for the same set of initial conditions  in FORTRAN and C++ there are no singularities......

 
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