saganforever Messages 11 Reaction score 0 Thread starter Apr 26, 2009 #1 I came across this yesterday when I was looking for equalities between the sums of two summations. I'm not sure if this is part of a proof or what.
I came across this yesterday when I was looking for equalities between the sums of two summations. I'm not sure if this is part of a proof or what.
JG89 Messages 724 Reaction score 1 Apr 26, 2009 #2 To see how this equality is true, remember that the sum of the first n integers is given by the formula: n(n+1)/2
To see how this equality is true, remember that the sum of the first n integers is given by the formula: n(n+1)/2
workmad3 Messages 52 Reaction score 0 Apr 27, 2009 #3 I'd not come across that before... pretty nice :) Simple yet elegant
saganforever Messages 11 Reaction score 0 Apr 27, 2009 #4 Thanks :) I'm 15 and just learned summation notation. I was playing with it for a few hours Saturday and my high school Geometry teacher thought it was pretty neat.
Thanks :) I'm 15 and just learned summation notation. I was playing with it for a few hours Saturday and my high school Geometry teacher thought it was pretty neat.
I'm not sure if this is part of a proof or what.