Re: apply the function, pass the return value to the function again, multiple rounds

[rocuinneagain]

You can so this using over

q)tab:([] A:1 2 3;B:4 5 6;C:7 8 9) 
// Sample table 
q)tab 
A B C 
----- 
1 4 7 
2 5 8 
3 6 9 
q)func:{![x;();0b;enlist[y]!enlist (+;y;1)]} 
//Function I want to run 
q)func[tab;`A] // Same as: update A:A+1 from tab 
A B C 
----- 
2 4 7 
3 5 8 
4 6 9 
q)func over enlist[tab],`A`B`C // Using over accumulator 
A B C 
------ 
2 5 8 
3 6 9 
4 7 10