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Comment Type & Canned Response: None None > Multiple Canned Responses Fixed in development Crash with no stack trace Already fixed in newer version Fixed in stable Bad description Bad description and crash Bad stack trace Obsolete version Duplicate and not fixed Duplicate and needs more info Duplicate and fixed Need info and old
There isn't enough time to have this be included for the 5.0 release, but I did push the change to the development branch that will become 6.0. See https://hg.savannah.gnu.org/hgweb/octave/rev/d4211810202a.
I think qp and sqp in general could use an overhaul. I filed another bug report about the questionable use of rtol as both an absoloute and relative tolerance. See bug #55351, "qp algorithm needs to distinguish TolX from TolCon".
Marking this bug as fixed and closing report.
I added the tolerance as an input parameter for qp in _qp_.cc. The options struct passed to qp.m now includes "TolX". Until now it contained only maxit. Regarding sqp.m, he qp subproblem now accepts the tolerance passed to sqp as a parameter.
(file #44091)
Bug #53483 indicated a problem in sqp which is track down to the C++ code of qp.cc
In line 99 qp uses a fixed tolerance for the search given by sqrt(eps). http://octave.org/doxygen/4.3/da/dbd/____qp_____8cc_source.html
This is a bug in qp and one would need to pass the tolerance as a parameter (or compute the correct tolerance for qp based on the arguments of sqp). This bug is similar to feature request #43030
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