50 Years of APL Datatypes (2016) [pdf]
Can anybody explain what this means?<p><i>Nested Arrays weren’t without controversy as there were two
competing designs called Floating and Grounded which differed in
many ways, but fundamentally on whether the enclose of a simple
scalar produced a new array or the same array.</i><p>What&#x27;s &#x27;enclosing&#x27; (is it something like boxing?) and what does it mean to produce a new or the same array?