Some solutions for the julia path

julia/difference-of-squares/difference-of-squares.jl

@@ -0,0 +1,14 @@
+"Square the sum of the first `n` positive integers"
+function square_of_sum(n)
+    return sum(1:n)^2
+end
+
+"Sum the squares of the first `n` positive integers"
+function sum_of_squares(n)
+    return sum((1:n).^2)
+end
+
+"Subtract the sum of squares from square of the sum of the first `n` positive ints"
+function difference(n)
+    return square_of_sum(n) - sum_of_squares(n)
+end