UnderBar [expr]
displays with a bar under expr.
UnderBar
UnderBar [expr]
displays with a bar under expr.
Examples
open all close allBasic Examples (2)
Type and then to enter directly:
Properties & Relations (1)
UnderBar is effectively a special case of Underscript :
if the output is used as input, both expressions standardize to UnderBar :
See Also
Tech Notes
Related Guides
Text
Wolfram Research (2007), UnderBar, Wolfram Language function, https://reference.wolfram.com/language/ref/UnderBar.html (updated 2020).
CMS
Wolfram Language. 2007. "UnderBar." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/UnderBar.html.
APA
Wolfram Language. (2007). UnderBar. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/UnderBar.html
BibTeX
@misc{reference.wolfram_2025_underbar, author="Wolfram Research", title="{UnderBar}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/UnderBar.html}", note=[Accessed: 04-January-2026]}
BibLaTeX
@online{reference.wolfram_2025_underbar, organization={Wolfram Research}, title={UnderBar}, year={2020}, url={https://reference.wolfram.com/language/ref/UnderBar.html}, note=[Accessed: 04-January-2026]}