Re: [Jchat] What do programmers mean by: variable, constant, function, array, etc?

[Don Guinn]

And we have things like "square root" which can't be a function as its
result is multi-valued. Unless we want to do some arm-waving using terms
like "principle-value". but we still call them "functions". The point I'm
trying to make is that concepts get lost in the nitty-gritty of the
technical definitions of "operator" and "function". As well as terms like
"vector", "matrix" and other terms we use which mean different things in
different disciplines and carry lots of baggage.
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