SYM Paclet Symbol

CharacterizeEq

CharacterizeEq[eq]
gives structural details about a differential equation or a system of differential equations eq.

To use CharacterizeEq, you first need to load the SYM Package using Needs["SYM`"].

The information provided is, independent variables, dependent variables, the highest order for each dependent variable and the derivatives present for each dependent variable. The general form of the output is {{indpVars₁, indpVars₂, ...}, {depVars₁, depVars₂, ...}, {{depVars₁, maxDerivative₁},...}, {{depVars₁,derivative₁,derivative₂,...},...}}. The derivatives are given as lists representing the times each argument of the function was differentiated.