Oscar Dowson

Results 183 issues of Oscar Dowson

These are `@example` blocks in the JuMP documentation: ```` ```@example π ``` ```@example typeof(π) ``` ```` Note the new line after the first π and the incorrect location of π...

Type: Bug
Format: LaTeX

The JuMP documentation (https://jump.dev/JuMP.jl/stable/JuMP.pdf) has a bunch of examples where the text is overfull. Are there any tools in Documenter to improve the layout of things? I guess the hard...

Type: Enhancement
Format: LaTeX

Project.toml was already updated, so just looks like we didn't tag a release.

Tony keeps using it. He really shouldn't. Switch to HiGHS instead.

Part of https://github.com/jump-dev/JuMP.jl/issues/3034. This PR explores the options we have to add a feasibility relaxation function to MOI. The main decisions would be: * Should it modify in-place or create...

@harshangrjn says that there are a bunch of functions in MINLPlib that AMPL supports that JuMP currently doesn't. Some of them are listed here: https://github.com/jump-dev/MathOptInterface.jl/blob/2aba5d5450b3a5931ff557cb8969efc2987b3ffd/src/FileFormats/NL/NLExpr.jl#L30-L101 We should go through and...

Project: next-gen nonlinear support
Submodule: Nonlinear

@kaarthiksundar and I talked about how it'd be good to pass the `MOI.Nonlinear.Model` straight to the solver (e.g., Alpine). We kinda do at the moment, in the `NLPBlockData` you can...

Project: next-gen nonlinear support
Submodule: Nonlinear

See discussion in #1992, and these tests: https://github.com/jump-dev/MathOptInterface.jl/blob/d9c998ac49a80ed8f740d5009133320e982af977/test/Bridges/bridge_optimizer.jl#L898-L933 The issue is that the bridge/model may support an attribute for a variable-in-set constraint if it was added via `add_constrained_variable(s)` but not...

Type: Bug
Submodule: Bridges

Closes #126 This won't work for now, because it requires a new upstream release of HiGHS.

See https://discourse.julialang.org/t/issues-solving-a-bilevel-optimization-with-binary-variables/105460 The unhelpful error is ```julia Constraints of function MathOptInterface.SingleVariable in the Set MathOptInterface.ZeroOne are not implemented Stacktrace: [1] error(::String, ::Type, ::String, ::Type, ::String) @ Base .\error.jl:44 [2] supported_constraints(con_types::Vector{Tuple{DataType,...