Search for all pages containing Head
Head
Examples
open all close allScope (3)
The head of a function entered with an operator:
The head of a compound expression:
Wrap the result in Hold to prevent the result from evaluating:
Without the second argument, the InverseFunction expression would evaluate:
Applications (2)
Find the cases with a head of Integer:
Define a function that extracts the head and guarantees no evaluation occurs:
Without the HoldComplete, a Function object would be returned:
Properties & Relations (2)
Possible Issues (1)
The head is based on FullForm:
Neat Examples (1)
Head always eventually burrows to a symbol:
Related Guides
History
Introduced in 1988 (1.0) | Updated in 2020 (12.1)
Text
Wolfram Research (1988), Head, Wolfram Language function, https://reference.wolfram.com/language/ref/Head.html (updated 2020).
CMS
Wolfram Language. 1988. "Head." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/Head.html.
APA
Wolfram Language. (1988). Head. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Head.html
BibTeX
@misc{reference.wolfram_2025_head, author="Wolfram Research", title="{Head}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/Head.html}", note=[Accessed: 04-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_head, organization={Wolfram Research}, title={Head}, year={2020}, url={https://reference.wolfram.com/language/ref/Head.html}, note=[Accessed: 04-August-2025]}