Question: how to convert a ODE/DAE system to a real system

June 04 2014 xmmood 15
Maple 15


I am using Maple 15 to numerically solve a system of differential algebraic euqations (DAE) with given initial conditions, and I've tried rfk45_dae and rosenbrock_dae solver, but both solver responded in error like this


Error, (in dsolve/numeric) cannot numerically solve complex DAE initial value problems, the system must be converted to a real system


I don't understand what is a real system, and how could i convert it to a real system.


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