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#129 Re: Help Me ! » Help » 2006-01-02 13:51:14

Nope, definitely not

#130 Re: This is Cool » Fermat's last theorem » 2005-12-31 12:30:44

From http://cgd.best.vwh.net/home/flt/flt01.htm it seem that this site has the proof http://www.math.princeton.edu/~annals/i … 141_3.html but it seems that you can only get access to the article through certain universities.

#131 Re: Help Me ! » Help » 2005-12-31 12:09:45

I do not think he is ever goint to reply back. It has been about 30 hours now.

#133 Re: Help Me ! » Help » 2005-12-30 13:31:31

Funny, we never heard back from the person who asked the question.

#136 Re: Help Me ! » Help » 2005-12-30 08:19:32

thanks, krassi_holmz
glad to help

#137 Re: Dark Discussions at Cafe Infinity » Chess » 2005-12-30 08:00:34

ganesh wrote:

You are correct, siva.eas.
I posted that in a hurry. A minor mistake. The first move should be
1. e4, e6

It still would not work, white cold block the check by moving its bishop to f7.

#138 Re: Help Me ! » Help » 2005-12-30 07:52:16

Let

squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(...) = x

[squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(...)]^2 = x^2

(1+(squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(...) = x^2

(squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(...) = x^2 - 1

As we already said,  squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(squr(1+(...) = x

so

x = x^2 -1

x^2 - x - 1 = 0

From the quadratic formula

x = (-(-1) + squr( 1 - 4*1*(-1)))/(2*1) or x = (-(-1) - squr( 1 - 4*1*(-1)))/(2*1)

x = (1+ squr (5))/2 or  x = (1 - squr (5))/2

x = 1.618 or x = -0.618

x = -0.618 won't work since it is negative number, so the sum is 1.618.

#139 Jokes » Why is six afraid of seven? » 2005-12-30 07:02:05

siva.eas
Replies: 29

Why is six afraid of seven?

Because seven eight nine.( hint: eight sounds almost like 'ate')

#140 Re: Dark Discussions at Cafe Infinity » Chess » 2005-12-29 03:31:28

krassi_holmz wrote:

Here's how must the chessboard look like:

It cannot be overlayed with 31 domino pieces because the square that are taken apart are both black pieces. As a result there will be thirty two white pieces and 30 black square, making it impossible for 31 domino pieces to cover the unequal number of white and black squares.

#141 Re: Dark Discussions at Cafe Infinity » Chess » 2005-12-27 01:34:10

I don't get the answer to the third problem. How could the black queen get to the h4 square when the black pawn at e7 is blocking it.

This will be the position after 2. f4.

#142 Re: Dark Discussions at Cafe Infinity » Chess » 2005-12-27 00:17:16

I think the shortest possible game is

1. e4, f5
2. Nc3, g5
3. Qh5++

#143 Dark Discussions at Cafe Infinity » A very interesting problem » 2005-12-26 12:57:40

siva.eas
Replies: 5

Here is a problem for the world's best and the brightest to ponder about? Can anyone answer the following questions.

10) Which of the sentences below cannot be wrong? Explain.   
a) The Earth orbits the Sun.   
b) Cats cannot lay eggs.   
c) You cannot be me.   
d) If João is Pedro’s son, João was born after Pedro.   
e) The choices ‘a’ and ‘b’ are correct.   
f) The choices ‘a’ and ‘c’ are correct.   
g) The choices ‘a’ and ‘d’ are correct.   
h) The choices ‘b’ and ‘c’ are correct.   
i) The choices ‘b’ and ‘d’ are correct.   
j) The choices ‘c’ and ‘d’ are correct.   
k) The choices ‘a’, ‘b’ and ‘c’ are correct.   
l) The choices ‘a’, ‘b’ and ‘d’ are correct.   
m) The choices ‘a’, ‘c’ and ‘d’ are correct.   
n) The choices ‘b’, ‘c’ and ‘d’ are correct.   
o) All the above are correct.   
p) None of the above is correct.

#145 Re: Dark Discussions at Cafe Infinity » Chess » 2005-12-26 12:20:48

I got a suggestion we could play chess on the board with writing out our moves on the forum using the chess alegrebraic notation.

#146 Dark Discussions at Cafe Infinity » Chess » 2005-12-26 10:30:20

siva.eas
Replies: 40

Does anyone here play chess

#147 Re: Help Me ! » Cayley Contest » 2005-12-26 10:14:55

Just curious are you taking the Cayley Contest by any chance since you are interested enough to try some of the problem? John E. Franklin

#148 Help Me ! » Cayley Contest » 2005-12-24 10:00:25

siva.eas
Replies: 6

Will anyone here be writing the Cayley Contest for mathematics in the February of 2006?

#149 Re: Jokes » Limericks » 2005-12-24 02:53:05

Has everyone stopped posting in this forum.

#150 Re: This is Cool » Really good at Mathematics? » 2005-12-17 10:47:07

The Field Medal awarders also gave award only once for a person over forty years ago. It was to Andrew Wiles who received the silver plague for solving the Fermat's Last Theorm which has kept many of the finest mathematicians for many centuries.

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