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......
