v0.21.1: TT _dim_order cluster + open issues + perf#23

Merged

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v0.21.1-dim-cluster

Apr 27, 2026

Commits on Apr 27, 2026

v0.21.1: ChebyshevTT.inner_product strict _dim_order check
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v0.21.1: _check_compatible — numerical domain comparison
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v0.21.1: ChebyshevTT.get_evaluation_points returns user-frame columns

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v0.21.1: ChebyshevTT.roots/min/max validate against user-frame domain

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v0.21.1: integrate error messages reference user-frame dim (issue #20)

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v0.21.1: eval_multi structural fix — eliminate _dim_order mutation (issue #19)
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v0.21.1: vectorize _calculus._optimize_1d candidate evaluation

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v0.21.1: hoist derivative matrix application out of vectorized_eval_batch loop
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v0.21.1: add comparison/demo script
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v0.21.1: docs + release housekeeping
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v0.21.1: address final review — extend np.allclose fix to TT internal sites
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v0.21.1: add ChebyshevTT.sobol_indices() (native TT contraction)
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v0.21.1: CHANGELOG/CLAUDE.md — sobol_indices shipped, not deferred
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tests: add non-uniform-domain + reorder sobol parity test (Issue 1)

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refactor: extract _apply_derivative_passes helper to barycentric.py (Issue 2)

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perf: cache left/right partial contractions for O(d*n*r^2) total-order sobol (Issue 3)

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