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Difference between revisions of "boolean algebra/incompletely specified function"
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==Overview==
 
==Overview==
In many situations when working with [[combinational circuit]]s, some combinations of inputs [[can't happen|should not occur]] under normal working conditions. For those combinations the output can be disregarded allowing for possibly further [[logic minimization]].
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In many situations when working with [[combinational circuit]]s, some combinations of inputs [[can't happen|should not occur]] under normal working conditions. For circuits with such combinations, those combinations can be treated as either 0 or 1 depending on whichever yields a more [[logic minimization|simplified]] Boolean expression.
 
 
  
 
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Revision as of 18:13, 15 December 2015

An Incompletely specified function is a Boolean function that only define output values for a subset of its inputs. Incompletely specified functions often make no guarantees as to the unspecified output whatsoever.

Overview

In many situations when working with combinational circuits, some combinations of inputs should not occur under normal working conditions. For circuits with such combinations, those combinations can be treated as either 0 or 1 depending on whichever yields a more simplified Boolean expression.

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