To write the Apl Functional Symbol Quad Downwards Arrow symbol ⍗ on keyboard using ALT codes; ALT+9047, j𝕴ust hold down the ALT key while typing the alt key code 9047. You have to use the numeric keypad of your keybo𓆉ard. If you don not have numeric keypad, hold down the Fn and ALT keys while typing the alt code number.