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Use spaces for train grouping and superscripts for Rank - #146

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pr/use-spaces-for-train-grouping-and-superscripts
Nov 12, 2026
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jph00 merged 1 commit into
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pr/use-spaces-for-train-grouping-and-superscripts

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@jph00 jph00 commented Nov 12, 2026

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Remove the added ∘-before-operator interpretation in favour of BPL's existing run grouping: ⊂⊢ ⌸ is (⊂⊢)⌸. Ordinary Atop is unchanged.

Use superscripts for ordinary finite ranks in documentation, notebooks, reference cases, gallery programs and libraries, including (1↓)¹ and ×¹ ². Keep explicit ⍤ for callable arrays, mixed infinite ranks and examples specifically teaching or testing the full spelling. Preserve spaces and parentheses where they clarify operand boundaries.

See Operators on trains in Composing functions and On a function in Superscripts.

@jph00 jph00 added the enhancement New feature or request label Nov 12, 2026
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jph00 merged commit 9d9ade7 into main Nov 12, 2026
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jph00 deleted the pr/use-spaces-for-train-grouping-and-superscripts branch November 12, 2026 04:16
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