from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics A
digitthat is nonzero, or when it is zero, it is followed only by zero digits. Used in rounding.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun any digit of a number that is known with certainty; any digit of a number beginning with the leftmost non-zero digit and ending with the rightmost non-zero digit (or a zero considered to be the exact value)
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