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Regarding the Python code snippet, it appears to be a trial and error approach for solving cyclic analysis in OpenSees. The code tries different algorithms and test criteria until a successful analysis (ok == 0) is achieved. Regarding printing the trial value that failed, you can move the print statement under "if ok==0:" before the "break" statement to achieve that.Immaculate Grid

Using Python libraries with OpenSeesPy offers advantages, and you are utilizing it for your research.