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[MacPerl] why address called reference?

may be off topic:

Why does Perl call memory address references? e.g. "$xx is a reference to an array", instead of "$xx is an address of an array".

Is is a convention or is there a technical reason?

Couriously,

 Xah, xah@best.com
 http://www.best.com/~xah/SpecialPlaneCurves_dir/specialPlaneCurves.html
 Mountain View, CA, USA



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