base/above-to-genfrac

Level

AuthoringFaithfulCorpusEquivEvery profile applies this rule; its output remains suitable for authoring.

Fidelity

renderPreserves rendering under the reference renderer.

Package

base

Source

base/authoring/over_family/above_to_genfrac.rs (opens in new tab)

Triggers

\above command

Eliminates

\above command

Produces

\genfrac command

Rewrite patterns#

1. #1 \above #2 #3\genfrac{}{}{#2}{}{#1}{#3}

Examples#

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

\sum_{i=1}^{m} a_i x^i \above 1.2pt \prod_{j=1}^{n}(1+y_j)

\genfrac{}{}{1.2pt}{}{\sum_{i=1}^{m} a_i x^i}{\prod_{j=1}^{n}(1+y_j)}

A+B \above 0pt C+D

\genfrac{}{}{0pt}{}{A+B}{C+D}

Related rules#

Same family#

• ams/cfrac-to-frac Drop continued-fraction styling from centered AMS cfrac forms.
• ams/dbinom-and-tbinom-to-binom Rewrite AMS display-style and text-style binomial commands to binom.
• ams/dfrac-to-frac Rewrite the AMS display-style fraction command to frac.
• ams/tfrac-to-frac Rewrite the AMS text-style fraction command to frac.
• base/abovewithdelims-to-genfrac Rewrite abovewithdelims to an explicit genfrac with delimiters and thickness.
• base/atop-to-genfrac Rewrite infix atop to an explicit no-rule genfrac form.
• base/atopwithdelims-to-genfrac Rewrite atopwithdelims to an explicit delimited no-rule genfrac form.
• base/brace-to-genfrac Rewrite infix brace to an explicit genfrac with brace delimiters.
• base/brack-to-genfrac Rewrite infix brack to an explicit genfrac with bracket delimiters.
• base/choose-to-binom Rewrite infix choose to an explicit binom command.
• base/over-to-frac Rewrite infix over to an explicit frac command.
• base/overwithdelims-to-genfrac Rewrite overwithdelims to an explicit genfrac with delimiters.
• base/root-of-to-sqrt Rewrite legacy root-of syntax to bracketed sqrt notation.
• base/leftroot-drop Drop the leftroot index-position hint in cleanup-oriented normalization.
• base/uproot-drop Drop the uproot index-position hint in cleanup-oriented normalization.

Disable this rule#

TransformEngine(profile="corpus", disable_rules=["base/above-to-genfrac"])

new TransformEngine({ profile: 'corpus', disableRules: ['base/above-to-genfrac'] })

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