Problem 6 from Project Euler:

The sum of the squares of the first ten natural numbers is,

12 + 22 + … + 102 = 385

The square of the sum of the first ten natural numbers is,(1 + 2 + … + 10)2 = 552 = 3025

Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 385 = 2640.Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.

My solution:

DECLARE v_sum PLS_INTEGER := 0; v_sum_sq PLS_INTEGER := 0; c_limit CONSTANT PLS_INTEGER := 100; BEGIN FOR i in 1 .. c_limit LOOP v_sum := v_sum + i; v_sum_sq := v_sum_sq + (i*i); END LOOP; dbms_output.put_line('diff = '||to_char(((v_sum*v_sum) - v_sum_sq))); END;

As always.. I am no mathmatician, so If you know of a better solution please let me know.