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Subject: Nonsensical text concerning coordinates in CAP Specification
It is said in Section 3.3.1 of the CAP V1.0 specification that: "Coordinates in the Southern and Western hemispheres are signed negative with a leading dash." I am aware of no usage of the English language that permits one to refer to a "coordinate" as "negative." Coordinates are composed of pairs of numbers which represent latitude and longitude, any one or both of these numbers may be "negative." While the components of a coordinate may individually be "negative" (preceded by a "dash") a coordinate which contains such a "negative" component is not referred to as "negative" in normal English usage nor is such usage made in the realm of mathematics. (Is a coordinate with two "negative" components "negative" or "positive"?) When writing standards, it is best to use commonly accepted language and meanings in order to ensure that ambiguities do not result from misinterpretations. bob wyman See: http://dictionary.reference.com/search?q=coordinate
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