dear memeber
what labview mean by this word in this labview helpl http://zone.ni.com/reference/en-XX/help/371894G-01/lvsimconcepts/sim_c_ode/
""Because many dynamic system models consist of differential equations, you must solve these differential equations".
" Most simulations you create in the LabVIEW Control Design and Simulation Module use ordinary differential equation (ODE) solvers""
best regards