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Merge branch 'main' of https://github.com/Jutho/TensorKit.jl into bd/multifusion
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‎.JuliaFormatter.toml‎

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‎.github/workflows/CI.yml‎

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name: CI
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on:
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push:
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branches:
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- 'master'
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- 'main'
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- 'release-'
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tags: '*'
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paths-ignore:
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- 'docs/**'
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pull_request:
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workflow_dispatch:
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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cancel-in-progress: true
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# Cancel intermediate builds: only if it is a pull request build.
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cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
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jobs:
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test:
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name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }}
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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version:
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- '1'
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- 'lts'
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- '1'
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group:
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- symmetries
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- tensors
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- other
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- autodiff
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os:
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- ubuntu-latest
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- macOS-latest
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- windows-latest
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steps:
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- uses: actions/checkout@v5
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- uses: julia-actions/setup-julia@v2
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with:
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version: ${{ matrix.version }}
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- uses: julia-actions/cache@v2
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- uses: julia-actions/julia-buildpkg@latest
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- uses: julia-actions/julia-runtest@latest
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env:
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JULIA_NUM_THREADS: 4
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- uses: julia-actions/julia-processcoverage@v1
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- uses: codecov/codecov-action@v5
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env:
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CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
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with:
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files: lcov.info
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uses: "QuantumKitHub/QuantumKitHubActions/.github/workflows/Tests.yml@main"
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with:
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group: "${{ matrix.group }}"
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julia-version: "${{ matrix.version }}"
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os: "${{ matrix.os }}"
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nthreads: 4
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timeout-minutes: 120
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secrets:
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CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
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test-nightly:
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needs: test
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name: Julia nightly - ${{ matrix.os }} - ${{ matrix.arch }}
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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version:
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- 'nightly'
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group:
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- symmetries
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- tensors
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- other
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- autodiff
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os:
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- ubuntu-latest
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- macOS-latest
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- windows-latest
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continue-on-error: true
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steps:
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- uses: actions/checkout@v5
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- uses: julia-actions/setup-julia@v2
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with:
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version: ${{ matrix.version }}
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- uses: julia-actions/cache@v2
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- uses: julia-actions/julia-buildpkg@latest
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- uses: julia-actions/julia-runtest@latest
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env:
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JULIA_NUM_THREADS: 4
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uses: "QuantumKitHub/QuantumKitHubActions/.github/workflows/Tests.yml@main"
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with:
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group: "${{ matrix.group }}"
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julia-version: "${{ matrix.version }}"
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os: "${{ matrix.os }}"
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nthreads: 4
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timeout-minutes: 120
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secrets:
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CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

‎.github/workflows/CompatCheck.yml‎

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runs-on: ubuntu-latest
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strategy:
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matrix:
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downgrade_mode: ['alldeps']
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julia-version: ['1.10', '1']
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downgrade_mode: ['deps']
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# TODO: this should be ['1.10', '1'] but that is currently broken:
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# https://github.com/julia-actions/julia-downgrade-compat/issues/25
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julia-version: ['1.10', '1.12']
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steps:
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- uses: actions/checkout@v5
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- uses: julia-actions/setup-julia@v2
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with:
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mode: ${{ matrix.downgrade_mode }}
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skip: Random, LinearAlgebra, Test, Combinatorics
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julia_version: ${{ matrix.julia-version }}
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- uses: julia-actions/julia-buildpkg@v1
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- uses: julia-actions/julia-runtest@v1

‎.github/workflows/CompatHelper.yml‎

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name: CompatHelper
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on:
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schedule:
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- cron: 0 0 * * *
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workflow_dispatch:
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permissions:
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contents: write
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pull-requests: write
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jobs:
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CompatHelper:
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runs-on: ubuntu-latest
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steps:
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- name: Pkg.add("CompatHelper")
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run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
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- name: CompatHelper.main()
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- name: Check if Julia is already available in the PATH
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id: julia_in_path
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run: which julia
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continue-on-error: true
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- name: Install Julia, but only if it is not already available in the PATH
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uses: julia-actions/setup-julia@v2
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with:
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version: '1'
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arch: ${{ runner.arch }}
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if: steps.julia_in_path.outcome != 'success'
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- name: "Add the General registry via Git"
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run: |
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import Pkg
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ENV["JULIA_PKG_SERVER"] = ""
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Pkg.Registry.add("General")
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shell: julia --color=yes {0}
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- name: "Install CompatHelper"
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run: |
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import Pkg
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name = "CompatHelper"
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uuid = "aa819f21-2bde-4658-8897-bab36330d9b7"
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version = "3"
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Pkg.add(; name, uuid, version)
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shell: julia --color=yes {0}
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- name: "Run CompatHelper"
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run: |
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import CompatHelper
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CompatHelper.main()
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shell: julia --color=yes {0}
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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COMPATHELPER_PRIV: ${{ secrets.DOCUMENTER_KEY }}
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run: julia -e 'using CompatHelper; CompatHelper.main()'

‎.github/workflows/Documentation.yml‎

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Documentation:
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strategy:
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‎.github/workflows/FormatCheck.yml‎

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name: FormatCheck
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name: 'Format'
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on:
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push:
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branches:
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- 'main'
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- 'master'
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- 'release-'
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tags: '*'
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pull_request:
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pull_request_target:
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paths: ['**/*.jl']
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types: [opened, synchronize, reopened, ready_for_review]
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jobs:
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build:
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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version:
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- '1' # automatically expands to the latest stable 1.x release of Julia
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os:
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- ubuntu-latest
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steps:
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- uses: julia-actions/setup-julia@latest
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with:
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version: ${{ matrix.version }}
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permissions:
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contents: read
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actions: write
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pull-requests: write
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- uses: actions/checkout@v5
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- name: Install JuliaFormatter and format
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# This will use the latest version by default but you can set the version like so:
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#
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# julia -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter", version="0.13.0"))'
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run: |
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julia -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter", version="1"))'
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julia -e 'using JuliaFormatter; format(".", verbose=true)'
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- name: Format check
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run: |
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julia -e '
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out = Cmd(`git diff --name-only`) |> read |> String
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if out == ""
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exit(0)
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else
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@error "Some files have not been formatted !!!"
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write(stdout, out)
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exit(1)
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end'
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jobs:
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formatcheck:
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uses: "QuantumKitHub/QuantumKitHubActions/.github/workflows/FormatCheck.yml@main"

‎.pre-commit-config.yaml‎

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repos:
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- repo: https://github.com/fredrikekre/runic-pre-commit
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rev: v2.0.1
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hooks:
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- id: runic

‎CITATION.cff‎

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given-names: "Jutho"
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orcid: "https://orcid.org/0000-0002-0858-291X"
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title: "TensorKit.jl"
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version: "0.14.11"
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version: "0.15.0"
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doi: "10.5281/zenodo.8421339"
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date-released: "2025-07-18"
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date-released: "2025-10-03"
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url: "https://github.com/QuantumKitHub/TensorKit.jl"
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preferred-citation:
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type: article

‎Changelog.md‎

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# Changelog
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## v0.15
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### MatrixAlgebraKit backend for factorizations
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This version introduces [MatrixAlgebraKit](https://github.com/QuantumKitHub/MatrixAlgebraKit.jl) as the new backend for tensor factorizations, replacing the previous internal `TensorKit.MatrixAlgebra` implementation. See [#230](https://github.com/QuantumKitHub/TensorKit.jl/pull/230) for details.
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#### Added
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- `foreachblock(f, t::AbstractTensorMap...)` - uniform interface to iterate through tensor blocks (prepares for future multithreading support)
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- `eig_trunc` and `eigh_trunc` - truncated eigenvalue decompositions
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- `ominus` (and unicode `⊖`) - compute orthogonal complement of a space
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- Backend selection for factorizations - swap algorithms or implementations
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#### Changed
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- Factorization functions `leftorth`, `rightorth`, `tsvd`, `eig`, `eigh` deprecated in favor of MatrixAlgebraKit variants (`left_orth`, `right_orth`, `svd_compact`, `eig_full`, `eigh_full`)
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- Truncation strategies now use MatrixAlgebraKit names: `truncrank` (replaces `truncdim`) and `trunctol` (replaces `truncbelow`)
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- `left_orth` and `right_orth` now always output tensors with a single connecting space
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- `left_orth` and `right_orth` now always have connecting space with `isdual=false`
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- code formatter is now [Runic.jl](https://github.com/fredrikekre/Runic.jl)
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#### Removed
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- `OrthogonalFactorization` structs (constructors deprecated to return equivalent MatrixAlgebraKit algorithm structs)
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- Direct permute-and-factorize operations (incompatible with `permute` vs `braid` distinction)
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- `Polar` decomposition behavior for `left_orth`/`right_orth` (use `left_polar`/`right_polar` instead for `isposdef` R factors)
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## v0.14
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### Use `DiagonalTensorMap` for singular values and eigenvalues
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simplifications for the outwards-facing interface, as now the `TensorMap` type requires less
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parameters, and the fusion-tree structure is more clearly considered as an implementation
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detail that can be left hidden to the user. Various other improvements and documentation
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work was also carried out.
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work was also carried out.

‎Project.toml‎

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name = "TensorKit"
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uuid = "07d1fe3e-3e46-537d-9eac-e9e13d0d4cec"
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authors = ["Jutho Haegeman"]
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version = "0.14.11"
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version = "0.15.3"
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[deps]
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LRUCache = "8ac3fa9e-de4c-5943-b1dc-09c6b5f20637"
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LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
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MatrixAlgebraKit = "6c742aac-3347-4629-af66-fc926824e5e4"
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OhMyThreads = "67456a42-1dca-4109-a031-0a68de7e3ad5"
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PackageExtensionCompat = "65ce6f38-6b18-4e1d-a461-8949797d7930"
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Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
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Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
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ScopedValues = "7e506255-f358-4e82-b7e4-beb19740aa63"
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Strided = "5e0ebb24-38b0-5f93-81fe-25c709ecae67"
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TensorKitSectors = "13a9c161-d5da-41f0-bcbd-e1a08ae0647f"
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TensorOperations = "6aa20fa7-93e2-5fca-9bc0-fbd0db3c71a2"
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[compat]
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Aqua = "0.6, 0.7, 0.8"
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ArgParse = "1.2.0"
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ChainRulesCore = "1"
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ChainRulesTestUtils = "1"
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Combinatorics = "1"
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FiniteDifferences = "0.12"
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LRUCache = "1.0.2"
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LinearAlgebra = "1"
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MatrixAlgebraKit = "0.5.0"
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OhMyThreads = "0.8.0"
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PackageExtensionCompat = "1"
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Printf = "1"
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Random = "1"
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SafeTestsets = "0.1"
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ScopedValues = "1.3.0"
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Strided = "2"
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TensorKitSectors = "0.3"
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TensorKitSectors = "=0.3.0, 0.3.2"
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TensorOperations = "5.1"
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Test = "1"
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TestExtras = "0.2,0.3"
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julia = "1.10"
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[extras]
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ArgParse = "c7e460c6-2fb9-53a9-8c5b-16f535851c63"
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Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
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ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
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ChainRulesTestUtils = "cdddcdb0-9152-4a09-a978-84456f9df70a"
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Combinatorics = "861a8166-3701-5b0c-9a16-15d98fcdc6aa"
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FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
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LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
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SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
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TensorOperations = "6aa20fa7-93e2-5fca-9bc0-fbd0db3c71a2"
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Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
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TestExtras = "5ed8adda-3752-4e41-b88a-e8b09835ee3a"
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Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
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[targets]
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test = ["Aqua", "Combinatorics", "LinearAlgebra", "TensorOperations", "Test", "TestExtras", "ChainRulesCore", "ChainRulesTestUtils", "FiniteDifferences", "Zygote"]
70+
test = ["ArgParse", "Aqua", "Combinatorics", "LinearAlgebra", "TensorOperations", "Test", "TestExtras", "SafeTestsets", "ChainRulesCore", "ChainRulesTestUtils", "FiniteDifferences", "Zygote"]

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