PHP Shape Area
function shapeArea($n) {
return $n > 1 ? shapeArea($n-1) + 4*($n-1) : 1;
}
This returns the area of the growing n-interesting polygon using the direct formula instead of building the shape.
function shapeArea($n) {
return $n > 1 ? shapeArea($n-1) + 4*($n-1) : 1;
}
This returns the area of the growing n-interesting polygon using the direct formula instead of building the shape.