User:Raakin khan

= Raakin's Summation Formula. =

= Easy problems: = $$\overbrace{ 1+2+\cdots+100 }^{5050}$$

First, doing it completely manually:
" 1+2+3+4+5+6+...+100 = 5050 "

There are a lot of ways to calculate the summations
= Implementation of Raakin's summation formula. = $$\overbrace{ 5+6+7+ \cdots+44 }^{980}$$

which is,
$$\biggl((x+y)(x-y)+\Nu(x+y)\Biggr)\div2\Nu$$