See also: Appendix:Variations of "q"

U+211A, ℚ
DOUBLE-STRUCK CAPITAL Q

[U+2119]
Letterlike Symbols
[U+211B]

Translingual

Etymology

From the initial of Italian quoziente (quotient), notation proposed in 1895 by mathematician Guiseppe Peano.

Symbol

  1. (mathematics) The set of rational numbers.
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