physics/norm-to-double-vert-fence

Level

AuthoringFaithfulCorpusEquivFaithful, Corpus, and Equiv apply this rule.

Fidelity

renderPreserves rendering under the reference renderer.

Package

physics

Source

physics/faithful/delimiter_shorthand/norm_to_double_vert_fence.rs (opens in new tab)

Triggers

\norm command

Eliminates

\norm command

Produces

\left, \right commands

Rewrite patterns#

1. auto-sized\norm{#1}\left\| #1 \right\|
2. fixed-size\norm*{#1}\| #1 \|

Examples#

Each example shows this rule applied in isolation. A complete normalization profile may make additional changes.

\norm{v}

\left\| v \right\|

\norm{A x-b}_2

\left\| A x-b \right\|_2

\norm*{A x-b}_2

\| A x-b \|_2

Related rules#

Same family#

• base/Big-class-variants-to-Big Collapse \Bigl, \Bigr, \Bigm to \Big.
• base/Bigg-class-variants-to-Bigg Collapse \Biggl, \Biggr, \Biggm to \Bigg.
• base/big-class-variants-to-big Collapse \bigl, \bigr, \bigm to \big.
• base/bigg-class-variants-to-bigg Collapse \biggl, \biggr, \biggm to \bigg.
• base/Big-delimiter-size-drop Drop the fixed delimiter size imposed by \Big.
• base/Bigg-delimiter-size-drop Drop the fixed delimiter size imposed by \Bigg.
• base/big-delimiter-size-drop Drop the fixed delimiter size imposed by \big.
• base/bigg-delimiter-size-drop Drop the fixed delimiter size imposed by \bigg.
• physics/absolutevalue-to-abs Collapse absolutevalue to the shorter abs helper before fence expansion.
• physics/evaluated-to-eval Collapse evaluated to the shorter eval helper before eval expansion.
• physics/quantity-to-qty Collapse quantity to the shorter qty helper.
• physics/Bqty-to-brace-fence Rewrite Bqty to explicit brace fences.
• physics/abs-to-vert-fence Rewrite abs to explicit vertical bar fences.
• physics/bqty-to-bracket-fence Rewrite bqty to explicit bracket fences.
• physics/pqty-to-paren-fence Rewrite pqty to explicit parenthesis fences.
• physics/eval-expand Expand eval notation to the explicit fence-and-bar form.

Notes#

The star branch preserves fixed-size double bars instead of introducing left/right fences.

Disable this rule#

TransformEngine(profile="corpus", disable_rules=["physics/norm-to-double-vert-fence"])

new TransformEngine({ profile: 'corpus', disableRules: ['physics/norm-to-double-vert-fence'] })

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