Hello,
Currently, I migrate my Maple Code to Mathematica code. On a part linked to linearization, I meet some difficulties. In fact, i try to linearize some differential equations around an equilibrium position. The linearization is made with Taylor expansion at the fist order. Unfortunately, i didn't manage to find with Mathematica the same resultats than with Maple. In fact, in my Mathematica code, the terms at the second orders are not neglected (simplifed) as regard to the terms at the first order.
Do you have some ideas to correct my code so as to linearize the differential equations presented here at the first order (without the second order terms) with Mathematica ?
The results I would like to obtain are given in the Maple code. I inserted a screen print of my two codes (maple and mathematica) and I have also joined the notebook file.
Maple code for linearization :
Mathematica code for linearization (The second order terms are underlined in red) :
Attachments: