With Nina, my Lebanese friend...

nobody@flickr.com (poly_mnia) — Thu, 10 Aug 2006 14:48:45 -0700

poly_mnia posted a photo:

University of Birmingham...

Nina Saadallah and me...

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Fibonacci's Rabbit...

nobody@flickr.com (poly_mnia) — Sat, 29 Aug 2009 11:24:01 -0700

poly_mnia posted a photo:

How Many Pairs of Rabbits Are Created by One Pair in One Year ?

A certain man had one pair of rabbits together in a certain enclosed place, and one wishes to know how many are created from the pair in one year when it is the nature of them in a single month to bear another pair, and in the second month those born to bear also.

He then goes on to solve and explain the solution:
Because the above written pair in the first month bore, you will double it; there will be two pairs in one month.
One of these, namely the first, bears in the second montth, and thus there are in the second month 3 pairs; of these in one month two are pregnant and in the third month 2 pairs of rabbits are born, and thus there are 5 pairs in the month;
...
there will be 144 pairs in this [the tenth] month;
to these are added again the 89 pairs that are born in the eleventh month; there will be 233 pairs in this month.
To these are still added the 144 pairs that are born in the last month; there will be 377 pairs, and this many pairs are produced from the above written pair in the mentioned place at the end of the one year.

beginning 1
first 2
second 3
third 5
fourth 8
fifth 13
sixth 21
seventh 34
eighth 55
ninth 89
tenth 144
eleventh 233
end 377

R.Knott - Fibonacci

12 o'clock...(past)

nobody@flickr.com (poly_mnia) — Mon, 14 Aug 2006 02:13:46 -0700

poly_mnia posted a photo:

birmingham university campus

Uploads from poly_mnia, tagged campus

With Nina, my Lebanese friend...

Fibonacci's Rabbit...

12 o'clock...(past)