infinity
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infinity: n.

  1. The largest value that can be represented in a particular type of variable (register, memory location, data type, whatever).

  2. minus infinity: The smallest such value, not necessarily or even usually the simple negation of plus infinity. In `N`-bit twos-complement arithmetic, infinity is `2N-1 - 1` but minus infinity is `- (2N-1)`, not `-(2N-1 - 1)`. Note also that this is different from time T equals minus infinity, which is closer to a mathematician's usage of infinity.

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