OFFTOPIC: Algebra (was re: AMD (fwd))

David Schwartz (davids@wiznet.net)
Sun, 22 Dec 1996 22:11:30 -0500 (EST)


On Sun, 22 Dec 1996, Bryn Paul Arnold Jones wrote:

> On Sat, 21 Dec 1996, Rob Glover wrote:
> > _ _
> > Well, they still have to do a bit of funny math... 33.33 * 3 = 99.99
> > <this is an example of 100 :>

I feel really silly posting this to linux-kernel, but 99.99... is
100. Rememberering high school algebra,...

X = 99.9999....
Multiplying both sides by 10 gies
10X = 999.9999....

Subtracting the above from the first equation gives

10X - X = 999.9999... - 99.9999....

Which gives:

9X = 900

Dividing both sides by 9 gives

X = 100

Hence 99.99...... equals 100. No funny math needed.

DS