Math Forum / Mathematics / Numerical Analysis / February 2010

I'm young (not that much, not that few) and I'm having problems
at learning at school.
I'm attending the high school, and I'm having most problems with
limits and function continuity.

so a co-worker of mine says he has a new classification for numbers.
any integer that starts and ends with the same digit will from here on
out be called a 'foose number'. (this came about as a joke.)
now i am curious though... does such a classification already exist?

I have a set of matrices which I diagonalize using Lapack package.
Matrices are symmetric but complex and of the order of 1000. Out of
say million matrices I found rare events where the distribution of the
eigen values are large. Not only that the matrix elements are also

I have a simple problem where I'm trying to minimize the distance
between a point r0 and a surface or volume (assuming the point r0 is
exterior).  Points in the surface or volume are located by the function
r(L1,L2) for a surface and r(L1,L2,L3) for a volume where

فروش کتابهای مدیریت بیش از 7000 کتاب
فروش کتابهای مدیریت بیش از 7000 کتاب
فروش مدیریت بیش از 7000 کتاب
این کتابها شامل بهترین و کاربردی ترین کتابهای الکترونیکی رشته مدیریت

I have two different functions f(x) and g(x) described as plane Bezier
curves, say of fourth degree:
[f] =[(Pi_x,Pi_y)]
[g] =[(Qi_x,Qi_y)]

Recently I was unable to reach the famous repository, www.netlib.org.
Is it down for good? Does anybody know anything about it?

As stated in the title, I am given a non-linear, instable and stiff
DOE system of 5 equations. I use an appropriate MATLAB solver to solve
it (for `t', the time), which returns `t' and `y' (`y' being a n * 5
matrix). In each column of the 5 cols. of `y', I would like to know

Let f  be a function y = f(x ; a, b) with two parameters a and b (eg.
f(x) = ax+b )
Given a set of  N data (x_1, y_1), ... ,(x_N, y_N) , I find the
estimate of a, b  by minimising the least square error.

Hello forum
I have a variation on a typical Physics problem.
I have a very large ( 10^3 to 10^6 elements square) sparse, Real,
Symmetric Matrix that I am using as part of model of a system of

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solutions manual  or test bank only contact me by email to
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I have a system of ODEs that I need to solve with MATLAB. After having
computed the Jacobian matrix, I realize that its eigenvalues all lie
in ]-\infty, 0]. As you see, the problem is that two of its 5
eigenvalues (it is 5 times 5) equal 0. Or I also have a criterion

Contact bwennny@hotmail.com for more information!
A Course in Algebraic Number Theory by Henry Cohen
A Course in Game Theory by Martin J. Osborne and Ariel Rubinstein
A First Course In Probability 7th Ed by Sheldon Ross

Dla ciągu zmiennych logicznych a[i], i = 1... n, oraz drzewa którego
wezeł ma dwie tranzycje 0 i 1, oraz zbioru alternatyw koniunkcji
liczącego k koniunkcji.
Operacja dodawania do drzewa A drzewa B, gdzie drzewo B jest w postaci

I have to write a program for calculating eigenvalues of non symmetric
matrices.
I am not a mathematician but using some linear algebra text books I
came up with the following steps: