++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ Which of the following are real problems with the Ritz method: 1. Selection of basis functions for general ge- ometries. 2. Lack of systematic procedure to compute sti?ness matrix and forcing terms. 3. Selection of basis functions that do not en- force spurious displacement boundary con- ditions. 4. No problems, Ritz method is “the ultimate” we should stick with it. ? ++++ None of the above statements ? ++++ All of the above statements ? ++++ All of the above statements but (4) ? ++++ Statement (4) ? ++++ DKDU The correct answer is ++++