Exercise: Partition (Pseudo-) Operator Index   <<   >>

 

b←1=?1e5⍴20
x←7÷⍨¯200+?1e5⍴1000

cmpx '≢¨⊂⍨b' '(≢¨⊂)⍨b'
cmpx '+/¨b⊂x' 'b(+/¨⊂)x'
cmpx '⌈/¨b⊂x' 'b(⌈/¨⊂)x'