Assume unknown functions are non-linear in hessian_sparsity
#1384
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
I've run into issues similar to #749, #643, #555 etc. with
isaffine
/islinear
/hessian_sparsity
repeatedly.In this PR I propose to assume that functions with unknown linearity are non-linear. This seems to be a safe default that does not report any incorrect structural zeros but would at most error on the other side (missing structural zeros).
Fixes #555.
Fixes #847.
Fixes #790.
Fixes #749.