The syntax is actually quite simple, but you may be confused by the unfamiliar symbols and lack of syntax. 0 1 is simply [0,1] in JSON and ⍵ is the argument nam

The syntax is actually quite simple, but you may be confused by the unfamiliar symbols and lack of syntax. 0 1 is simply [0,1] in JSON and ⍵ is the argument name. The other symbols cirrespond to prefix and infix operators. Compare the following JS expression which is syntactically (but not semantically) equivalent to the APL expression below it: - [0,1] * 0 ** w ⍸ 0 1 ⍷ 0 , ⍵