Update: should be dep var
*setopname 9 ^say
//how to calculate bird view area of car
-<((<(car * $x) --> length> &/ <(car * $y) --> width>) &/ <({SELF} * ($x * $y)) --> ^mul>) =/> <mul --> [executed]>>.
+<((<(car * #1) --> length> &/ <(car * #2) --> width>) &/ <({SELF} * (#1 * #2)) --> ^mul>) =/> <mul --> [executed]>>.
//comparison with parking lot of size 10
<((<mul --> [executed]> &/ <#1 --> result>) &/ <({SELF} * (#1 * 10)) --> ^smaller>) =/> <smaller --> [executed]>>.
//report comparison result
