## infinity

**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
2^(N-1) - 1 but minus infinity is -
(2^(N-1)), not -(2^(N-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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