Use MATLAB

 β€’ 1-calculate the first 100 iterations of 

                                βˆ‘ 𝑖 ^2 𝑛 𝑖=1 = 𝑛(𝑛+1)(2𝑛+1) 6

 Note i is from 1 to n and in front of sigma we have i 2 

β€’ 2- Estimate the value of Ο€. 

(Help;                      βˆ‘ (βˆ’1)^𝑛 2𝑛+1 ∞ 𝑛=0 = πœ‹ 4 ) 

Note n is from 0 to ∞ and in front of sigma we have a fraction in top ( -1)^n and in the bottom of fraction we have 2n+1.