$Input
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$Input
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is a global variable whose value is the name of the stream from which input to the Wolfram Language is currently being sought.
Examples
Basic Examples (2)Summary of the most common use cases
In[1]:=1
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https://wolfram.com/xid/0j5fmp5q-ih8kob
During interactive input, $Input is "":
In[1]:=1
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https://wolfram.com/xid/0j5fmp5q-jrcpoa
Out[1]=1
Wolfram Research (1991), $Input, Wolfram Language function, https://reference.wolfram.com/language/ref/$Input.html.
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Wolfram Research (1991), $Input, Wolfram Language function, https://reference.wolfram.com/language/ref/$Input.html.
Text
Wolfram Research (1991), $Input, Wolfram Language function, https://reference.wolfram.com/language/ref/$Input.html.
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Wolfram Research (1991), $Input, Wolfram Language function, https://reference.wolfram.com/language/ref/$Input.html.
CMS
Wolfram Language. 1991. "$Input." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$Input.html.
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Wolfram Language. 1991. "$Input." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$Input.html.
APA
Wolfram Language. (1991). $Input. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$Input.html
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Wolfram Language. (1991). $Input. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$Input.html
BibTeX
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@misc{reference.wolfram_2024_$input, author="Wolfram Research", title="{$Input}", year="1991", howpublished="\url{https://reference.wolfram.com/language/ref/$Input.html}", note=[Accessed: 10-January-2025
]}
BibLaTeX
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@online{reference.wolfram_2024_$input, organization={Wolfram Research}, title={$Input}, year={1991}, url={https://reference.wolfram.com/language/ref/$Input.html}, note=[Accessed: 10-January-2025
]}