Collocation and FEM Method relationship
https://chat.deepseek.com/share/etmdhcrkz9e0xtg8fa
https://chatgpt.com/share/6a582093-dc58-83eb-b373-da6c86ba46fa
https://chat.deepseek.com/share/etmdhcrkz9e0xtg8fa
https://chatgpt.com/share/6a582093-dc58-83eb-b373-da6c86ba46fa