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SubStar[expr]

displays as expr*.

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Basic Examples  
Scope  
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SubStar

SubStar[expr]

displays as expr*.

Details

  • SubStar[expr] can be entered using and .
  • SubStar[expr] remains unchanged by evaluation.

Examples

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Basic Examples  (2)

SubStar[expr] is formatted as expr with a subscript asterisk:

Wolfram Language code: SubStar[x]

Type x to enter directly:

Wolfram Language code: Subscript[x, * ]//InputForm

Scope  (1)

Define a meaning for SubStar:

Wolfram Language code: SubStar[f_] := First@FindMinimum[{f[x], 0 ≤ x ≤ 1}, {x}]
Wolfram Language code: f[x_] := Exp[-x] + x ^ 2
Wolfram Language code: Subscript[f, * ]
Wolfram Language code: Subscript[Exp, * ]

Clear definitions:

Wolfram Language code: Clear[SubStar]
Wolfram Research (2007), SubStar, Wolfram Language function, https://reference.wolfram.com/language/ref/SubStar.html.

Text

Wolfram Research (2007), SubStar, Wolfram Language function, https://reference.wolfram.com/language/ref/SubStar.html.

CMS

Wolfram Language. 2007. "SubStar." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/SubStar.html.

APA

Wolfram Language. (2007). SubStar. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/SubStar.html

BibTeX

@misc{reference.wolfram_2026_substar, author="Wolfram Research", title="{SubStar}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/SubStar.html}", note=[Accessed: 15-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_substar, organization={Wolfram Research}, title={SubStar}, year={2007}, url={https://reference.wolfram.com/language/ref/SubStar.html}, note=[Accessed: 15-June-2026]}