Motorola M500 Manuel d'utilisateur télécharger pdf (Page 31)

M500 180 Page 29

Twenty-ﬁve years ago

From M500 33 & 34

John Parker—A goat is tethered to a point on the perimeter of a circu-

lar silo. The length of the rope just permits him to graze as far as the

diametrically opposite side of the silo. What is his grazing area?

Max Bramer—Given n + 1 positive integers all less than or equal to 2n,

prove that at least two must be coprime.

Datta Gumaste—If B is some branch of mathematics, it is essentially a

collection of theorems and their proofs, where each theorem is implied by

a statement assumed or proved to be true. Let C = {t : t is a proof of

a theorem}; U = {p : p is an axiom or deﬁnition}; R is implication (⇒).

Then (C, R, U) satisﬁes the deﬁnition of art. But this shows that B, which

is any branch of mathematics, is an art, and hence mathematics is an art.

But when you are in love you do not need a proof. You simply love,

and in loving you are love.

‘Imagine the perplexity of a man outside time and space, who has lost his

watch, his measuring rod and his tuning fork.’—A. Jarry.

M500 Mathematics Revision Week-end 2001

JRH

The 27th M500 Society Mathematics Revision Week-end will be

held at Aston University, Birmingham over 14 – 16 September 2001.

Tutorial sessions start at 19.30 on the Friday and ﬁnish at 17.00 on

the Sunday. The Week-end is designed to help with revision and exam

preparation, and is open to all OU students. We intend to present most OU

maths courses. On the Saturday evening we have mathematical lecture by

our guest speaker, Professor Roger Webster of Sheﬃeld University.

After the lecture Charles Alder is running a disco. In parallel and

for the less energetic we plan to organize a ceilidh. If you play a musical

instrument, please do remember to bring it with you.

See http://freespace.virgin.net/jeremy.humphries/sept.htm for full details

and an application form, or send a stamped, addressed envelope to

Jeremy Humphries, M500 Week-end 2001.

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Motorola M500 Manuel d'utilisateur Page 31