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Question: What is the difference between m[f] and m:-f where module m exports a name f (assigned and unassigned cases)?

Question:What is the difference between m[f] and m:-f where module m exports a name f (assigned and unassigned cases)?

zenterix 350
module export
July 28 2024
2

I am reading the Maple Programming Guide chapter 3 "Maple Expressions". There are subsections on "Indexed Expressions" and "Member Selection".

The following is based on reading these sections.

Consider the following module definition

m := module() export e, f:=2; end module:

What is the difference between m[e] and m:-e or m[f] and m:-f?

The documentation says that both evaluate module m's export e but the difference is that the index selection form will evaluate e before resolving the export.

What does this mean exactly?

When I try out in a worksheet both m[f] and m:-f return 2 and m[e] and m:-e return the name e.
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