({{, (RefLink[RadicalBox, paclet:ref/RadicalBox])[x,n]
is a low-level box construct that represents the displayed object (x^(1/n)) in notebook expressions. }})

OpenersNotesSection(Spacer1)Details and Options

Inside \(…\) (RefLink[RadicalBox, paclet:ref/RadicalBox])[x,n] can be input as \@x\%n.

In a notebook a (RefLink[RadicalBox, paclet:ref/RadicalBox]) can be created using (Key1[ctrl, @]) or (Key1[ctrl, 2]), then using (Key1[ctrl, %]) to move to the index position. (Key1[ctrl, space]) moves out of the radical.

In (RefLink[StandardForm, paclet:ref/StandardForm]) and (RefLink[InputForm, paclet:ref/InputForm]), (RefLink[RadicalBox, paclet:ref/RadicalBox])[x,n] is interpreted on input as x^(1/n).

The baseline of (RefLink[RadicalBox, paclet:ref/RadicalBox])[x,n] is taken to be the baseline of x.

If (RefLink[RadicalBox, paclet:ref/RadicalBox])[x,n] does not fit on a single line, it is output as x^(1/n).

In (RefLink[StandardForm, paclet:ref/StandardForm]), explicit (RefLink[RadicalBox, paclet:ref/RadicalBox]) objects are output literally. You can use (RefLink[DisplayForm, paclet:ref/DisplayForm]) to see the display form of such objects.

OpenersPrimaryExamplesSection(Spacer1)Examples  (3)

OpenersExampleSection0(Spacer1)Basic Examples  (3)

Display a letter under a radical with a root index:

RadicalBox["x","3"]//DisplayForm

A (RefLink[RadicalBox, paclet:ref/RadicalBox]) form is typically interpreted as a fractional power:

ToExpression[RadicalBox["x","3"],StandardForm]

%//FullForm

The (RefLink[TraditionalForm, paclet:ref/TraditionalForm]) formatting for an n(^th) root uses (RefLink[RadicalBox, paclet:ref/RadicalBox]):

ToBoxes[x^(1/3),TraditionalForm]//FullForm

The formatted result looks like this:

x^(1/3)//TraditionalForm

({{DocumentationFooterIconsRelatedFunction.png, ({{See Also}, {(RefLink[Power, paclet:ref/Power])  ▪  (RefLink[SqrtBox, paclet:ref/SqrtBox])  ▪  (RefLink[OverscriptBox, paclet:ref/OverscriptBox])  ▪  (RefLink[GridBox, paclet:ref/GridBox])}})}})

({{DocumentationFooterIconsRelatedTutorial.png, ({{Tutorials}, {▪(RefLinkPlain[Representing Textual Forms by Boxes, paclet:tutorial/RepresentingTextualFormsByBoxes])}, {▪(RefLinkPlain[String Representation of Boxes, paclet:tutorial/StringRepresentationOfBoxes])}, {▪(RefLinkPlain[Typing Radicals, paclet:tutorial/TypingRadicals])}})}})

({{DocumentationFooterIconsRelatedGuide.png, ({{Related Guides}, {▪(RefLinkPlain[Low-Level Notebook Structure, paclet:guide/LowLevelNotebookStructure])}})}})