Math Forum / Mathematics / Undergraduate Math / September 2008

(Note: this was originally an email I sent to a website maintained by
Paul Cox. The email bounced, the site is very out of date. I
originally found the site in question via this article
http://members.cox.net/mathmistakes/damnable.htm )

As I suspected yesterday, JSH's chain of Diophantine equations approach
blows up fast in most cases.  I've modified my little test program to
use a big integer library, so it can go farther, and here's an overview
of the results.

Creation of man from "Nutfah"
"Be cursed (the disbelieving) man!  How ungrateful he is! From what
thing did He create him?  From Nutfah (male and female semen drops) He
created him and then set him in due proportion."

Given the general result that whenever you have
x^2 + Dy^2 = F
you have a connected equation
z^2 + D(x+y)^2 = F*(D+1)

I am looking for the Modern Physics For Scienstis And Engineers 2ED by
John Taylor,  Chris Zafiratos.
Please send more information about it to me.
Thanks a lot .

Hi there, after staring at this for a while now, I don't understand this bond example:
Example: Let us suppose that BT were to issue a bond with 10 years to maturity. The BT bond has an annual coupon of £80. Therefore, BT will pay £80 per year for the next
10 years in coupon ...

I am attempting to use the 'extended euclidean algorithm' to solve equations
of the type :-
a.f  +  b.g  =  c
where, 'f' , 'g' and 'c' are univariate polynomials, and 'a' and 'b' are

this betting system uses reverse odds and betting on rows or columns. this is a 2/3 or 67% chance of winning, but you also lose double your money when you lose.
- - - - - - - - - - - - - - - -
if you bet $1 on row 1 and $1 on row 2 and the ball lands on row 3 you lose $2. this ...

I'm new to Linear Algebra, and have a question about a problem having to do with linear independence / dependence.
If vectors (v1, v2, v3) are linearly independent, wouldn't a combination of these vectors also be independent?
For instance, if there are vectors (a1, a2, a3) that ...

If someone could forward it to me too that would be great, thank you
soo much!!!
pointandclick8765@yahoo.com

In some proofs we pick out an arbitrary element from some set.
Usually this is one of the first lines in the proof.
e.g., "Suppose a /in A."  (*)
When we do this, must we always be sure that A is nonempty or do the

I am looking for the solution manual for Mechanics of Materials 7th
edition by James M. Gere.
# ISBN-10: 0534553974
# ISBN-13: 978-0534553975

Decided to do a web search on: diophantine chain
I came up with the following:
http://rmmc.asu.edu/abstracts/rmj/vol13-1/owipag1.pdf
DIOPHANTINE CHAINS

here's the problem:
find a 1-parameter family of solutions of the diff eq:
y dx + x ln(y/x) dy - 2x dy = 0
here's my attempted solution:

The US Government changed the rules and politicos are in the process
of demonizing short sellers, and I know how it feels to be someone who
thought they were doing the right thing, only to have the rules
changed on you.