v←↓m←○?2 100⍴100 13.1 cmpx '+/m' '+/¨v' +/m → 4.89E¯6 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕ +/¨v → 2.50E¯6 | -49% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕ 13.2 cmpx '+/m' '+/¨v' +/m → 6.28E¯7 | 0% ⎕⎕⎕⎕⎕ +/¨v → 2.66E¯6 | +323% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕