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{{Built-in|Root|√}} (< | {{Built-in|Root|√}} (<syntaxhighlight lang=j inline>%:</syntaxhighlight> in [[J]]) is a [[dyadic]] [[scalar function]] that computes the [[wikipedia:nth root|nth root]]; <syntaxhighlight lang=apl inline>X√Y</syntaxhighlight> is equal to <syntaxhighlight lang=apl inline>Y*÷X</syntaxhighlight>, the right [[argument]] raised to the [[power]] of the [[reciprocal]] of the left argument. The positioning of arguments resembles the [[Comparison with traditional mathematics#Explicitness|mathematical notation]] <math>\sqrt[x]{y}</math>. Root shares the [[glyph]] <syntaxhighlight lang=apl inline>√</syntaxhighlight> with the monadic function [[Square Root]], which is the same as Root with the default left argument of 2. Root is defined in [[J]], [[NARS2000]], [[dzaima/APL]], and [[Extended Dyalog APL]]. | ||
== See also == | == See also == | ||
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* [http://wiki.nars2000.org/index.php/Root NARS2000] | * [http://wiki.nars2000.org/index.php/Root NARS2000] | ||
* J [https://www.jsoftware.com/help/dictionary/d132.htm Dictionary], [https://code.jsoftware.com/wiki/Vocabulary/percentco#dyadic NuVoc] | * J [https://www.jsoftware.com/help/dictionary/d132.htm Dictionary], [https://code.jsoftware.com/wiki/Vocabulary/percentco#dyadic NuVoc] | ||
* [https://mlochbaum.github.io/BQN/doc/arithmetic.html#basic-arithmetic BQN] | |||
{{APL built-ins}}[[Category:Primitive functions]][[Category:Scalar dyadic functions]] | {{APL built-ins}}[[Category:Primitive functions]][[Category:Scalar dyadic functions]] |