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precedence

   Also found in: Dictionary/thesaurus, Legal, Financial, Acronyms, Idioms, Wikipedia, Hutchinson 0.03 sec.

precedence

The order in which an expression is processed. Mathematical precedence is normally:

1. unary + and - signs
2. exponentiation
3. multiplication and division
4. addition and subtraction

In order to properly compute the formula that converts Fahrenheit to Celsius, which is fahrenheit-32*5/9, the expression

(fahrenheit-32)*5/9

must be used with parentheses separating the fahrenheit-32 from the multiplication. Since multiplication is evaluated before subtraction, 32 would be multiplied by 5 first, which is not what is wanted.

Logical precedence is normally:

1. NOT
2. AND
3. OR

In the dBASE query:

 list for item = "TIE" .and. color = "GRAY"
   .or. color = "RED"

all gray ties and anything red will be selected, since ANDs are evaluated before ORs. Grouping the colors in parentheses as in the example below yields only gray and red ties.
  (color="GRAY" .or. color="RED")

precedence [′pres·əd·əns]
(computer science)
The order in which operators are processed in a programming language.
precedence - operator precedence


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? Mentioned in ? References in classic literature
 
Gilmore returned to us a year later he assisted the design of these pages, at my request, by writing the Narrative which appears early in the story under his name, and which, though first in order of precedence, was thus, in order of time, the last that I received.
The Woman in White by Collins, Wilkie View in context
Cadwallader was strong on the intended creation of peers: she had it for certain from her cousin that Truberry had gone over to the other side entirely at the instigation of his wife, who had scented peerages in the air from the very first introduction of the Reform question, and would sign her soul away to take precedence of her younger sister, who had married a baronet.
Middlemarch by Eliot, George View in context
The Knight of the White Moon replied that it was a question of precedence of beauty; and briefly told him what he had said to Don Quixote, and how the conditions of the defiance agreed upon on both sides had been accepted.
Don Quixote by Cervantes, Miguel View in context
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