être exact - traducción al Inglés
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être exact - traducción al Inglés

DISJOINT FAMILY OF SETS, DRAWN FROM A LARGER COLLECTION, WITH THE SAME UNION AS THE WHOLE COLLECTION
Exact cover problem; Exact Cover; Exact hitting set
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Definición

exact science
If you say that a particular activity is not an exact science, you mean that there are no set rules to follow or it does not produce very accurate results.
Forecasting floods is not an exact science.
N-SING: usu with brd-neg

Wikipedia

Exact cover

In the mathematical field of combinatorics, given a collection S of subsets of a set X, an exact cover is a subcollection S* of S such that each element in X is contained in exactly one subset in S*. In other words, S* is a partition of X consisting of subsets contained in S. One says that each element in X is covered by exactly one subset in S*. An exact cover is a kind of cover.

In computer science, the exact cover problem is a decision problem to determine if an exact cover exists. The exact cover problem is NP-complete and is one of Karp's 21 NP-complete problems. It is NP-complete even when each subset in S contains exactly three elements; this restricted problem is known as exact cover by 3-sets, often abbreviated X3C. The exact cover problem is a kind of constraint satisfaction problem.

An exact cover problem can be represented by an incidence matrix or a bipartite graph.

Knuth's Algorithm X is an algorithm that finds all solutions to an exact cover problem. DLX is the name given to Algorithm X when it is implemented efficiently using Donald Knuth's Dancing Links technique on a computer.

The standard exact cover problem can be generalized slightly to involve not only "exactly one" constraints but also "at-most-one" constraints.

Finding Pentomino tilings and solving Sudoku are noteworthy examples of exact cover problems. The n queens problem is a slightly generalized exact cover problem.

Ejemplos de uso de être exact
1. " La dernière maison pour être exact ", explique un agent de la Protection civile en service sur la plage.