Meep's Math Matters 2: summing even and odd numbers

[ivolol]

You can also say the sum of the odd number series is the sum of the whole number series minus the sum of the even number series.

i.e odd series = (n(n+1)/2) - ((n/2)((n/2)+1)

this also = n^2

You can see we use (n/2) for the even series because the first n even numbers is in the range of the first 2n whole numbers.

[meepsmathmatters]

That's a good way to look at it, too.

[rabbit4diesel]

Meep! I love all of your videos!!