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Positive[x]

gives True if x is a positive number.

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Positive

Positive[x]

gives True if x is a positive number.

Details

  • Positive[x] gives False if x is manifestly a negative numerical quantity, a complex numerical quantity, or zero. Otherwise, it remains unevaluated.

Examples

Basic Examples  (1)

Evaluate different types of numbers:

Wolfram Language code: Positive[{1.6, 3 / 4, Pi, 0, -5, 1 + I, Sin[10 ^ 5]}]

Quantities that are not NumericQ remain unevaluated:

Wolfram Language code: Positive[{x, Sin[y]}]
Wolfram Research (1988), Positive, Wolfram Language function, https://reference.wolfram.com/language/ref/Positive.html.

Text

Wolfram Research (1988), Positive, Wolfram Language function, https://reference.wolfram.com/language/ref/Positive.html.

CMS

Wolfram Language. 1988. "Positive." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Positive.html.

APA

Wolfram Language. (1988). Positive. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Positive.html

BibTeX

@misc{reference.wolfram_2026_positive, author="Wolfram Research", title="{Positive}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/Positive.html}", note=[Accessed: 13-June-2026]}

BibLaTeX

@online{reference.wolfram_2026_positive, organization={Wolfram Research}, title={Positive}, year={1988}, url={https://reference.wolfram.com/language/ref/Positive.html}, note=[Accessed: 13-June-2026]}