How to change the Jacobian settings (full, fixed, lumped) when using solvepde?
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回答 (1 件)
J Philps 2017 年 6 月 1 日
You are right, Jacobian selection option is no longer supported in the new workflow introduced since R2016a. Note that even in pdenonlin, the Jacobian selection was limited to 2-D problems. Approximate Jacobian, by specifying ‘fixed’ or ‘lumped’ options, often results in convergence issues.
Could you please share your workflow and any possible reason to not use the default full Jacobian?