i0←{⎕ct←0 ⋄ ⍺⍳⍵} x←(2*¯24)ׯ1e9+?1e6⍴2e9 cmpx 'x⍳x' 'x i0 x' x⍳x → 4.03E¯1 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕ x i0 x → 1.76E¯1 | -57% ⎕⎕⎕⎕⎕⎕⎕⎕⎕