v4.4.1

Symbolics v4.4.1

Diff since v4.4.0

Merged pull requests:

• Fix one more wrong error in array differentiation (#570) (@shashi)

v4.4.0

Symbolics v4.4.0

Diff since v4.3.1

Closed issues:

• Support for matrix symbols (#94)
• Code from Symbolics.jl tutorial using Symbolics.MultithreadedForm() produce an error (#136)
• Symbolics.value.() not working on Complex{Num} (#314)
• automated sparse parallelism on m1 (#546)
• get linear terms (#550)

Merged pull requests:

• Fix Sparse Multithreaded Form (#144) (@ChrisRackauckas)
• MultithreadedForm as a special case of ShardedForm (#447) (@shashi)
• CompatHelper: bump compat for TermInterface to 0.3, (keep existing compat) (#551) (@github-actions[bot])
• diff2term: handle elements of symbolic arrays (#552) (@doppioandante)
• fix unwrap on Complex when components are actually Real (#554) (@shashi)
• Fix docs of register_symbolic macro (#556) (@odow)
• Fix tiny typo in README.md (#564) (@cmey)
• fix nested scalarize (#565) (@shashi)
• Don't throw array derivative error in an innocent case (#568) (@shashi)

v4.3.1

Symbolics v4.3.1

Diff since v4.3.0

Closed issues:

• No method matching +(MPoly{BigInt}) in build_function (#108)
• bug in simplify_fractions? (#487)
• Trivial simplification not happening. (#494)
• Error in tutorial (#500)
• Question: Structs with fields with abstract types (#501)
• solve_for seems to be broken (#504)
• fails to simplify 2x2 matrix inverse (#507)
• Convert a num matrix to float64 (#510)
• Simplify the default simplify so that a small fraction needs simplify_fraction (#511)
• simplify() working? (#513)
• Error when precompiling Symbolics (#520)
• Overflow error with rational number simplification (#533)
• Can't convert Num to Float64 (#535)

Merged pull requests:

• Get @rule to work on Array expressions (#495) (@shashi)
• update test to pass with new rules in SU (#502) (@shashi)
• Update Symbolics citation (#505) (@ChrisRackauckas)
• Add method for ^(::Irrational{:ℯ}, x::Num) (#506) (@brenhinkeller)
• Fix the ambiguity of sparse (#508) (@YingboMa)
• Handle undefined derivatives in jacobian_sparsity (#515) (@ChrisRackauckas)
• patch matlab codegen (#516) (@ChrisRackauckas)
• add groebner_basis (#519) (@sumiya11)
• Update DeployPage.yml (#528) (@tlienart)
• Throw error on differentiation involving arrays (#530) (@shashi)
• CompatHelper: bump compat for NaNMath to 1, (keep existing compat) (#531) (@github-actions[bot])
• CompatHelper: bump compat for ArrayInterface to 5, (keep existing compat) (#541) (@github-actions[bot])
• CompatHelper: bump compat for Groebner to 0.2, (keep existing compat) (#542) (@github-actions[bot])

v4.3.0

Symbolics v4.3.0

Diff since v4.2.3

Closed issues:

• Any point in getting pi handled as a number and symbol in the same formula? (#497)

Merged pull requests:

• CompatHelper: bump compat for ArrayInterface to 4, (keep existing compat) (#499) (@github-actions[bot])

v4.2.3

Symbolics v4.2.3

Diff since v4.2.2

Merged pull requests:

• Make Jacobian_sparsity robust to non-vector inputs (#493) (@ChrisRackauckas)

v4.2.2

Symbolics v4.2.2

Diff since v4.2.1

Merged pull requests:

• Register fallback fix (#491) (@shashi)

v4.2.1

Symbolics v4.2.1

Diff since v4.2.0

Closed issues:

• can symbolic.jl solve a system of nonlinear equations？ (#470)
• There will be a lot of warnings when using @register in 1.7 (#478)
• substitute parsing error (#480)

Merged pull requests:

• CompatHelper: bump compat for SymbolicUtils to 0.19, (keep existing compat) (#475) (@github-actions[bot])
• Fix register fallback (#488) (@shashi)
• Add states kwarg (#489) (@YingboMa)

v4.2.0

Symbolics v4.2.0

Diff since v4.1.1

Closed issues:

• Evaluate NonlinearSystem at HomotopyContinuation variables/parameters (a problem with build_function/generate_function) (#414)
• Auto-Parallel example fails on simplify(...) step (#467)

Merged pull requests:

• CompatHelper: bump compat for SpecialFunctions to 2, (keep existing compat) (#452) (@github-actions[bot])
• abstract type Operator (#454) (@baggepinnen)
• CI to LTS (#463) (@ChrisRackauckas)
• Corrected the output from f(u[1:4]) (#466) (@NicholasWMRitchie)
• Fix auto-parallel tutorial (#469) (@ChrisRackauckas)
• Remove destructive invalidation and fix compile times (#471) (@ChrisRackauckas)

v4.1.1

Symbolics v4.1.1

Diff since v4.1.0

Closed issues:

• scalarize errors on vector inner products (#417)
• Stackoverflow with array variable and registered function (#436)
• @registered functions with return type annotation doesn't produce requested return type (#438)
• Adding two mat-vec-mul throws "key i not found" (#448)

Merged pull requests:

• Don't recurs if we are done (#433) (@YingboMa)
• Remove pirate ndims method (#437) (@baggepinnen)
• more conscious sparse array handling in build_function (#444) (@shashi)
• add jacobian method for Arr (#445) (@baggepinnen)
• solve some bugs with get_variables on array variables (#451) (@baggepinnen)
• WIP: @register changes (#457) (@shashi)
• fix extruded dim in broadcast when all args have size 1 (#458) (@shashi)

v4.1.0

Symbolics v4.1.0

Diff since v4.0.1

Merged pull requests:

• Semi-polynomial form (#428) (@shashi)
• define ^ for difference (#429) (@baggepinnen)
• Update DiscreteUpdate docstring (#430) (@baggepinnen)