sci.math Google Group

Re: Is there some methods to solve equations with MIN operation?

2010-07-30T10:06:22Z

Thank you for your help. Your approach is right.
Unfortunately, I don't have LINGO and only have Matlab. Therefore, I
have to find how to represent the following equations in Matlab;)
x3+x4 <= 3*(1-y2) + 200*y2;
@BIN(y1);
Xu

Re: WHY SCIENCE IS NOT PART OF CULTURE

2010-07-30T09:59:09Z

Science is about analysis and rational thought, its about the objective
critical understandings of the world, the biggest and the smallest part.
Culture is about control, directed emotions, beliefs, shared responses.
The thoughtful in a sea of superficial volatile emotions, is a woose,
a geek, if he's lucky, or a gay, if he's not. Thought seen in terms the

Re: eigenvalues of a matrix

2010-07-30T09:52:33Z

Thank you.

Re: Is there some methods to solve equations with MIN operation?

2010-07-30T09:39:08Z

Both x-vectors are solutions of the LP problem since
they satisfy the constraints and minimize the objective
function.
The fact that the first solution gives a solution
to the min-problem and the second does not
shows that LP-formulation and min-problem are not
equivalent.
Best wishes
Torsten.

Re: Attraction of opposite electric charges would form neutronium

2010-07-30T09:25:42Z

It is not proof.

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T09:16:40Z

[...]
I don't know how likely it would be for two seeds to produce
overlap in a short time. But I like using seeds that I've
almost surely never used before. I happen to use
the Mersenne Twister algorithm, but getting new
"random" seeds is always good for any algorithm.
[...]
I often want to do just that: use new seeds. I used to go to

GHD Limited Edition IV Pure Styler

2010-07-30T09:12:39Z

Been gone for a minute but I’m still going strong with this long
transition to natural hair. I’ve straightened my hair three times
since the Straight Hair, Fresh Cut post in January. But now I’m ready
to get back to less heat until September. I’m probably going to
cornrow it up for a few weeks and wear wigs and twists until I find

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T08:58:52Z

Ron asks an interesting question, and I think you shoot from the hip and
may have missed on this one.
First of all, when crossposted to clc and sci.math, there is no
"standard" that does not require disambiquity. Given what it is, we
might say "the C standard" when talking about C, or its lurking uncle,

Re: Is there some methods to solve equations with MIN operation?

2010-07-30T08:44:29Z

I cannot get this answer. Although I am trying to find more
information, I am new to LP and Matlab. The following is my code
f = [1;1;1;1;0;0]
A = [ 0 -1 0 0 0 0
0 0 0 0 -1 0
0 0 0 0 0 -1];
b = [-3;-5;-5];
Aeq = [ -1 -1 0 0 1 0
0 0 -1 -1 0 1];
Beq = [0;0]
lb = zeros(6,1)
[x, fval, exitflag, output, lambda] = linprog(f,A,b,Aeq,Beq,lb);

Re: Quantiative Science Before Galileo

2010-07-30T08:35:47Z

Well not really. maths and observation are usually enough.

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T08:33:13Z

First of all, I think we're talking to the actual George Marsaglia here.
Thank you so much for posting. You may have displaced Terence as our
senior member.
Are you creating bigger numbers just to accomodate your age?:-)
$ gcc -Wall -Wextra geo1.c -o out
geo1.c: In function ‘MWC’:
geo1.c:5: warning: type defaults to ‘int’ in declaration of ‘c’

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T07:41:27Z

In article <ron-shepard-969C9C.2213062907 2...@news60.forteinc.com>,
No, no, a thousand times, NO! That is NOT enough, though FAR too many
Web pages, published papers and books claim that it is. Disjointness
isn't even a poor relation of randomness.
This is easiest to see with a simple multiplicative congruential

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T06:39:06Z

Ah, of course.

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T06:37:07Z

(snip)

That is true, but there are some assumptions. Since the
standard doesn't say much at all about the underlying algorithm,
it isn't so reliable a statement as it seems.
For one, many PRNGs have poor performance with some starting seeds,
or poor performance for some cycles, especially as viewed from

Re: KISS4691, a potentially top-ranked RNG.

2010-07-30T06:28:05Z

(snip)

1
You can subtract 2**32, or find two values to IOR together.
(And remember that this is all twos-complement specific.)
-- glen