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You’ll find here a walkthru of what will eventually be all the glyphs in Dyalog APL, in an order where no glyph is used in an example until it’s been introduced. So far there’s no prose – the explanations are purely through examples for now (but we’ll add prose later).
There’s also a Python equivalents notebook, which has
explanations using python of some APL ideas, including bind/partial
and APL operators (aka higher-order functions).