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From: | Jay Foad |
Subject: | Re: [Bug-apl] A couple of bugs, and a question on the power operator |
Date: | Mon, 15 Aug 2016 09:24:48 +0100 |
thanks, I see. If I read your examples correctly then Dyalog has a special syntax {A} to mark the left argument A
of a defined function as optional and, as a consequence, to declare a function as ambivalent.
In GNU APL (and I believe also in IBM APL2) every defined dyadic function is automatically ambivalent,
and therefore there is not difference between a defined ambivalent function and a defined dyadic function.
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