[address-policy-wg] RE: an arithmetic lesson

> On 3 Dec 2009, at 10:00, <michael.dillon at bt.com> wrote:
> 
> > an IPv6 /24 and an IPv4 /24 use up the same percentage of the total 
> > address space.
> 
> How do you work that out? Please enlighten me. 2^24/2^128 x 
> 100 is many orders of magnitude smaller than 2^24/2^32 x 100:
> 	gromit% bc
> 	scale=50
> 	2^24/2^128*100
> 	.00000000000000000000000000000493038065763132378300
> 	2^24/2^32*100
> 	.39062500000000000000000000000000000000000000000000
> 
> There are of course the same number of IPv4 and IPv6 /24s.

Percentage is calculated by dividing the number of things
under consideration by the total number of things. When
I used the word "an", I meant one thing.

Assuming that the number of IPv4 and IPv6 /24s is 10

1/10 = 1/10

Assuming that the number of IPv4 and IPv6 /24s is 8192

1/8192 = 1/8192

Assuming that the number of IPv4 and IPv6 /24s is 2882873787

1/2882873787 = 1/2882873787

Do you see a pattern forming? 

--Michael Dillon