[Features] `project_isometric` and `PolarNewton`#67

Merged

lkdvos merged 12 commits intomainfrom

Oct 8, 2025

Commits on Oct 7, 2025

Add `hermitianpart!` and `antihermitianpart!`
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Add `ishermitian` and `isantihermitian`
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blocked (anti)hermitian

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rename to project_

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also change includes

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add blocked ishermitian

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add PolarNewton

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add more tests and project_isometric

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fix/restore matrixproperties

Jutho
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move polar alg definition
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rename `svdalg` to `svd_alg`
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remove `opnorm` from imports
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