Computing (FOLDOC) dictionary
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programming (or "floating point underflow", "floating
underflow", after "overflow
") A condition that can occur
smaller in magnitude (closer to zero, either positive or
negative) than the smallest quantity representable. Underflow
10^127. A result less than 10^-128 would cause underflow.
Depending on the processor
, the programming language and the
combination of these effects. Alternatively, it may just be
ignored and zero substituted for the unrepresentable value,
cannot be so easily ignored.