[Ipopt] What if the sparsity structure of Hessian depends on x

[Xin Zhao]

Dear all,

Would anyone like to explain me some details on the sequence how eval_h and
eval_jac_g are called?

At each iteration, are eval_h and eval_jac_g called first with values =
NULL or not?

For my case, the sparsity structure of eval_h and eval_jac_g depends on the
variables x. So it matters
how eval_h and eval_jac_g are called first. Or maybe there is another
workout?

Thanks.


Best,
Xin
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