The Advantage of Postfix and Prefix Forms for Expressions Is

question 42

Multiple Choice

The advantage of postfix and prefix forms for expressions is that ____.

• A) they do not require parentheses to express the order in which operators are applied
• B) they follow strict rules of operator precedence
• C) they follow strict rules that define associativity of operators
• D) they do not allow unary operators

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Definitions:

Specified Tolerance

The permissible limit or range of variation defined for a dimension, material condition, or geometric characteristic.

Angularity

A geometric dimensioning and tolerancing (GD&T) term that describes the angle tolerance of a feature relative to a datum.

Specified Angle

An angle that is expressly defined or given, often noted in technical drawings or design specifications for construction or manufacturing.

Parallelism

The relationship between two lines or surfaces that are equidistant from each other at all points.