evalstr [ strquote eval ] func
include [ fread evalstr ] func

# Author: Preston Pan
neg [ 0 swap - ] func

# Author of loop function: Andrei S
loop [
  swap dup 0 > [
    swap
    dup eval
    swap 1 - swap loop
  ] [ dsc dsc ] if
] func

# Author: Matthew H
dupd [ [ dup ] keep ] func
over [ dupd swap ] func
dup2 [ over over ] func
dip2 [ swap [ dip ] dip ] func
while [  dup2 [ [ ] if ] dip2 over [ while ] [ dsc dsc ] if ] func

loop-times [ dup2 [ swap [ ] if ] dip2
dup [ 1 - loop-times ] [ dsc dsc ] if ] func

d>base [ [ pow * "" swap ] keep2

[ [ over ] [ [ dup2 / floor * swap over - ] keep [ [ "0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "↊" "↋" ] vat swap + ] with dip2 ] while dsc2 dup len(str-len) ] dip
- dup2 tail [ head "." ] dip + + ] func