Zero is the integer denoted 0 that, when used as a counting number, means that no objects are present. It is the only integer (and, in fact, the only real number) that is neither negative nor positive. A number which is not zero is said to be nonzero. A root of a function f is also sometimes known as "a zero of f."
Airy function zeros | approximate zero | Bessel function zeros | constant problem | division by zero | fallacy | identically zero | naught | negative | nonnegative | nonzero | positive | power | Richardson's theorem | root | uniformity conjecture | vanish identically | vanishing | zero divisor | zerofree | zero matrix | zero-sum game
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