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...related concepts, some derived from traditional mathematical notation. The dot is one of the most [[wikipedia:Operator_overloading|overloaded]] APL symbol ...t lang=apl inline>X +.× Y</syntaxhighlight> is the [[wikipedia:dot product|dot product]].

...1979 "for his pioneering effort in programming languages and mathematical notation resulting in what the computing field now knows as APL; for his contributio ...hematics, Iverson developed [[Iverson notation|an alternative mathematical notation]] and later described, in his book [[A Programming Language]], how this cou

...evaluated. Note that this is precisely the [[wikipedia:Dot product|vector dot product]] when used as <syntaxhighlight lang=apl inline>+.×</syntaxhighlig Inner product appeared in early [[Iverson Notation]] as <math>^f_g</math> and applied even to non-[[scalar function]]s, like [

Dot ← +.× 3 1 4 Dot 2 7 1

...0-04-20 || || || [[Ken Iverson]] || [[Direct definition (notation)|Direct Definition]] ...|| [[Ken Iverson]] || [[Determinant]]-Like Functions Produced by the Dot-Operator ([https://www.jsoftware.com/papers/satn42.htm web])

...ge'' group] featuring the letters "APL" in the Jokerman font, but with the dot in the letter L replaced by an apple. ...'s history. The script lettering commemorates APL's origins as handwritten notation and at the same time symbolises the ease with which APL is written. On dark

...also driven the adoption of new functionality such as [[Nest]] and [[array notation]] in Dyalog. ...eptember || [[Namespace]] [[reference]]s (instead of [[string]] names) and dot syntax, context-sensitive help (F1), aditional GUI objects with animation