v3.7.1

ModelingToolkit v3.7.1

Diff since v3.7.0

Closed issues:

• Slow jump construction likely due to substitute (#426)

Merged pull requests:

• Fix array nested sparse cases (#424) (@wupeifan)
• Enable the creation of Problems from ReactionSystems (#425) (@TorkelE)
• revert back to using a parameter eval module (#427) (@isaacsas)
• Jump problem kwarg fix (#430) (@isaacsas)

v3.7.0

ModelingToolkit v3.7.0

Diff since v3.6.4

Closed issues:

• Operation times a sparse array errors (#381)
• Symbolic derivation of Jacobian no longer working (#403)
• MTK generated function printing out a lot of messages (#406)
• Arrays of sparse matrices not sparse (#407)
• Unit tests for arrays of matrices not hooked up (#408)
• Converting Derivative to Variable does not depend on type of Derivative (#409)
• make_sub! in ReactionSystem -> NonlinearSystem should be substitute (#418)

Merged pull requests:

• Fix type of mass matrix to be based on u0 (#397) (@ChrisRackauckas)
• provide iszero for Operation to help sparse matrix addition and multiplication (#404) (@caryan)
• Update LICENSE.md (#410) (@ViralBShah)
• Enable ArrayOfArray Tests (#411) (@arnavs)
• fix convert(Variable, D(x)) (#412) (@YingboMa)
• Update docs (#416) (@mkg33)
• Add convert from ReactionSystem to NonlinearSystem (#417) (@TorkelE)
• reword a few docs / fix typos (#420) (@isaacsas)
• Fix MTK.build_function on "arrays of sparse matrices" and "arrays of arrays of sparse matrices" (#423) (@wupeifan)

v3.6.4

ModelingToolkit v3.6.4

Diff since v3.6.3

Merged pull requests:

• Fix Wfact(_t) calculation (#395) (@YingboMa)

v3.6.3

ModelingToolkit v3.6.3

Diff since v3.6.2

Closed issues:

• DAE auto detection not available (#389)
• DAE system solve produces singularity when jac = true (#390)

Merged pull requests:

• Docstring jacobian vector instead of scalar (#393) (@ArnoStrouwen)
• Automatic state detection and some performance optimization (#394) (@YingboMa)

v3.6.2

ModelingToolkit v3.6.2

Diff since v3.6.1

Merged pull requests:

• Place algebraic equations after differential equations (#391) (@YingboMa)

v3.6.1

ModelingToolkit v3.6.1

Diff since v3.6.0

Closed issues:

• Common model type generated by DSLs (#286)
• Document ReactionSystem and JumpSystem (#363)
• Extend dependency graphs to AbstractSystems and document them (#368)

Merged pull requests:

• Don't restrict the content of Constant (#387) (@YingboMa)

v3.6.0

ModelingToolkit v3.6.0

Diff since v3.5.0

Merged pull requests:

• dependency graph docs (#384) (@isaacsas)

v3.5.0

ModelingToolkit v3.5.0

Diff since v3.4.0

Closed issues:

• ModelingToolkitize failure (#195)
• SDESystems don't set noise_rate_prototype (#375)

Merged pull requests:

• fix modelingtoolkize to only return the system (#373) (@ChrisRackauckas)
• multidimensional modelingtoolkitize support (#374) (@ChrisRackauckas)
• automated noise rate prototype (#376) (@ChrisRackauckas)
• update get_variables! for Equations (#377) (@isaacsas)
• add ReactionSystem docs (#378) (@isaacsas)
• JumpSystem docs (#379) (@isaacsas)
• update docstring example for ODESystem (#380) (@caryan)

v3.4.0

ModelingToolkit v3.4.0

Diff since v3.3.0

Closed issues:

• Order of parameters (#365)

Merged pull requests:

• dependency graphs for JumpSystems (#353) (@isaacsas)
• keep the same result, do just 1 simplification (#355) (@ChrisRackauckas)
• Fix to making JumpSystems from ReactionSystems (#357) (@TorkelE)
• Add tests for Jumps created through reactions. (#358) (@TorkelE)
• CompatHelper: add new compat entry for "LightGraphs" at version "1.3" (#367) (@github-actions[bot])
• add ismassaction and get rid of some temp arrays (#369) (@isaacsas)
• Update DiffEqJump version for recent bug fixes (#371) (@isaacsas)

v3.3.0

ModelingToolkit v3.3.0

Diff since v3.2.0

Closed issues:

• Crash with Hessians (Bus Error: 10) (#350)
• Failed to Apply Rule (#351)
• ModelingToolkit.jl name (#352)

Merged pull requests:

• Enable creation of JumpSystems from ReactionSystems (#346) (@TorkelE)
• remove to_mtk in substitute (#347) (@shashi)
• Distributed parallelism build targets (#348) (@ChrisRackauckas)
• Fix MassActionJump parameter evaluation (#354) (@isaacsas)
• CompatHelper: add new compat entry for "RecursiveArrayTools" at version "2.3" (#356) (@github-actions[bot])