By Michael Karr, David B. Loveman
Communications of the ACM,
Vol. 21 No. 5, Pages 385-391
The issues of how a programming language might aid in keeping track of physical units (feet, sec, etc.) are discussed. A method is given for the introduction of relationships among units (a watt is volts*amps, a yard is three feet) and subsequent automatic conversion based upon these relationships. Various proposals for syntax are considered.
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