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QQ    

Robert P. Munafo, 2023 Jul 19.



math. The symbol (called "double-struck capital Q") is used to refer to the rational numbers. (The Q can be thought of as coming from "quotient".) In situations where symbols are not available, it is sometimes written "QQ". (See also CC, NN, RR, ZZ)




From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2024.

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