Problem 6：Sum square difference

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

The square of the sum of the first ten natural numbers is:

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.

思路：

這題的話程式設計相對要簡單一些，據題意已知1到10的和方差的求法，讓我們求1到100的和方差，我們可以直接呼叫求和函式，大大的提高了我們程式設計的效率，好了，直接上程式碼。

n = input('varible= ')  %將輸入變數賦值給n
i = 1 : n
x = sum(i.^(2));
y = sum(i).^2;
t = y - x;
t

結果： 25164150

短短几行程式碼就解決了問題，程式設計確實提升了我們的工作效率！大家多多交流！