v6.29.2

Symbolics v6.29.2

Diff since v6.29.1

Merged pull requests:

• Add numerator, denominator, terms and factors convenience functions (#1445) (@hersle)
• Document factors(), terms(), numerator() and denominator() (#1446) (@hersle)
• feat: add throw_no_derivative keyword to expand_derivatives (#1448) (@AayushSabharwal)
• Remove IfElse.jl (#1449) (@devmotion)
• CompatHelper: bump compat for Nemo in [weakdeps] to 0.49, (keep existing compat) (#1450) (@github-actions[bot])
• CompatHelper: bump compat for Nemo to 0.49 for package docs, (keep existing compat) (#1451) (@github-actions[bot])
• Fall back to non-zero Hessian sparsity pattern for unknwon functions with > 2 arguments (#1453) (@devmotion)
• Fix hessian_sparsity for ifelse (#1454) (@devmotion)
• fix: fix hasname for getindex of symbolics with no name (#1456) (@AayushSabharwal)
• Update Project.toml (#1457) (@ChrisRackauckas)

Closed issues:

• The alternative to ifelse (#16)
• Need control of simplify (#132)
• LoadError: MethodError: no method matching _sparse(::SymbolicUtils.BasicSymbolic{Any}, ::Int64) (#893)
• Docs: mention after 1.8 IfElse.ifelse is Base.ifelse (#900)
• hessian_sparsity errors for functions with > 2 arguments (#1452)

v6.29.1

Symbolics v6.29.1

Diff since v6.29.0

Merged pull requests:

• Add simple examples for @arrayop array operations in docs (#705) (@cnrrobertson)
• CompatHelper: bump compat for Groebner in [weakdeps] to 0.9, (keep existing compat) (#1440) (@github-actions[bot])
• CompatHelper: bump compat for Groebner to 0.9 for package docs, (keep existing compat) (#1441) (@github-actions[bot])
• fix: fix fast_substitute not folding getindex calls (#1443) (@AayushSabharwal)
• build: bump patch version (#1444) (@AayushSabharwal)

Closed issues:

• The 2nd value returned by build_function for symbolic arrays is an allocating function (#712)
• Inconsistent output order of build_function (#1382)

v6.29.0

Symbolics v6.29.0

Diff since v6.28.0

Merged pull requests:

• Forward taylor expansion keyword arguments to internal substitutions (#1429) (@hersle)
• Forward taylor() kwargs to substitute() (#1430) (@hersle)
• fix: fix NaN handling in ssqrt, scbrt, slog (#1432) (@AayushSabharwal)
• test: uncomment test of CSE with arrayops (#1434) (@AayushSabharwal)
• build: bump minor version (#1436) (@AayushSabharwal)

Closed issues:

• High order differentiation on rational equations (#634)
• expand_derivatives fails on simple expression, with only one variable referenced (#1262)

v6.28.0

Symbolics v6.28.0

Diff since v6.27.0

Merged pull requests:

• fix: fix codegen issues in preparation for CSE in MTK (#1425) (@AayushSabharwal)
• test: fix array codegen tests (#1426) (@AayushSabharwal)
• Update Project.toml (#1428) (@ChrisRackauckas)

Closed issues:

• solve_for fails for fractions (#424)
• solve_for didn't throw error in some nonlinear equation (#961)
• BoundsError when using expand_derivatives on a particular expression in y, but not the same expression in x (#1126)

v6.27.0

Symbolics v6.27.0

Diff since v6.26.0

Merged pull requests:

• fix: fix fast_substitute on subarrays of symbolic variables (#1423) (@AayushSabharwal)
• Update Project.toml (#1424) (@ChrisRackauckas)

v6.26.0

Symbolics v6.26.0

Diff since v6.25.0

Merged pull requests:

• Update Project.toml (#1420) (@ChrisRackauckas)
• feat: add similarto keyword to build_function (#1421) (@AayushSabharwal)
• Update Project.toml (#1422) (@ChrisRackauckas)

v6.25.0

Symbolics v6.25.0

Diff since v6.24.0

Merged pull requests:

• Fix ForwardDiff derivative of NaNMath.pow (#1400) (@devmotion)
• add Lux extension tests in ci (#1414) (@SebastianM-C)
• fix: fix handling of arrays of symbolics in linear_expansion (#1415) (@AayushSabharwal)
• ci: uncap KernelAbstractions (#1417) (@AayushSabharwal)
• Update Project.toml (#1418) (@ChrisRackauckas)

Closed issues:

• NaNMath.pow derivative throws DomainError (#1399)
• Failed to precompile SymbolicsLuxExt (#1413)

v6.24.0

Symbolics v6.24.0

Diff since v6.23.0

Merged pull requests:

• Fix fixpoint_sub warning (#1403) (@hersle)
• Remove stack-overflowy convert method (#1406) (@baggepinnen)
• feat: support array variables in linear_expansion (#1411) (@AayushSabharwal)
• Update Project.toml (#1412) (@ChrisRackauckas)

Closed issues:

• Type-inference failure in matmul (#1404)
• convert(Matrix{Num}, Diagonal([Num(1.0)])) does not convert (#1405)
• Add explicit multiplication (#1408)
• multiplication and division of two Num infers to Any (#1410)

v6.23.0

Symbolics v6.23.0

Diff since v6.22.1

Merged pull requests:

• test: added unit tests in Symbolics.jl/src/utils.jl (#1394) (@sivasathyaseeelan)
• build(deps): bump crate-ci/typos from 1.28.2 to 1.29.4 (#1395) (@dependabot[bot])
• fix: fix fast_substitute folding array of symbolics (#1398) (@AayushSabharwal)
• Update Project.toml (#1409) (@ChrisRackauckas)

Closed issues:

• get_variables drops metadata for callables (#1396)

v6.22.1

Symbolics v6.22.1

Diff since v6.22.0

Merged pull requests:

• add flag for activating robust calculation of expand_derivatives (#1353) (@karlwessel)
• fix latexify_recipes.jl for real values of type Complex (#1375) (@karlwessel)
• build(deps): bump crate-ci/typos from 1.27.0 to 1.28.2 (#1379) (@dependabot[bot])
• Assume unknown functions are non-linear in hessian_sparsity (#1384) (@devmotion)
• CompatHelper: bump compat for Nemo in [weakdeps] to 0.48, (keep existing compat) (#1386) (@github-actions[bot])
• CompatHelper: bump compat for Nemo to 0.48 for package docs, (keep existing compat) (#1387) (@github-actions[bot])
• Documentation updates (#1388) (@abhro)
• document kwarg fold in substitute (#1389) (@benneti)
• feat: wrap function in @inbounds if checkbounds = false (#1390) (@AayushSabharwal)
• Update Project.toml (#1392) (@ChrisRackauckas)

Closed issues:

• sparsehessian fails when getindex used (#555)
• hessian_sparsity fails with registered funcitons (#749)
• Function of unknown linearity used: getindex (#790)
• islinear fails on expressions when getindex on other variables is involved (#847)
• filter poly multiplying by x (#1356)