Math

NIKON D300
.. Click Here to Enter: http://better-web-777.com/1/nikon-d300 <<< .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ... 19 Jun 2010 06:56

On a particular type of sequence: Mathematical Spectrum 1976/1977Vol 9 No
Hi, this is a problem from the magazine mathematical spectrum. It is as follows: Call S_1 the sequence of +ve integers 1,2,3... S_(n+1) is obtained by adding 1 to those terms in S_n that are divisible by n. Viz, S_2 = 2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19 S_3 = 3,3,5,5,7,7,9,9,11,11,13,13,15,15,17,1... 19 Jun 2010 05:52

[ An AD(n) = (L(n,n) + 1) mod 9 -> An AD(n) =/= L(n,n) ] -> Higher Infinities
[ An AD(n) = (L(n,n) + 1) mod 9 -> An AD(n) =/= L(n,n) ] -> Higher Infinities Does anyone agree with the above version of Cantor's proof? Herc -- "And God posted an angel with a flaming sword at the gates of Cantor's paradise, that the slow-witted and the deliberately obtuse might not glimpse the wonder... 19 Jun 2010 05:52

Comet's 320ppm versus Earth's 160ppm experiment; Dirac's new radioactivities Chapt 5 #177; ATOM TOTALITY
Androcles wrote: "Owen Jacobson" <angrybaldguy(a)gmail.com> wrote in message news:2010061900210633875-angrybaldguy(a)gmailcom... | On 2010-06-18 02:37:18 -0400, Archimedes Plutonium said: | | > The I have experiment (B) where I take a given quantity of Earth | > simulated ocean water and another sampl... 19 Jun 2010 02:40

rewrite of #172; Dirac's new radioactivities Chapt 5 #173; ATOM TOTALITY
On 2010-06-18 02:37:18 -0400, Archimedes Plutonium said: The I have experiment (B) where I take a given quantity of Earth simulated ocean water and another sample of a simulated Comet water Ocean water is easy, but how do you propose to simulate comet water? -o ... 19 Jun 2010 10:11

3D trig problem
From a point A due north of a tower, the angle of elevation to the top of the tower is 45 degrees. From point B, 100 m on a bearing of 120 degrees from A, the angle is 26 degrees. Find the height of the tower. My problem is that I can't find enough information to use the sine or cosine rule. I believe it's imp... 23 Jun 2010 05:09

A reformulation of ZF-Reg.
After I made a reformulation of Z-Reg. as I presented in the post to this Usenet under the title_ A=Z-Regularity. The following is a parallel formulation but of ZF-Regularity instead of Z-Reg. A" is the set of all sentences (entailed from FOL with identity and membership) by the following non logical axioms: (... 18 Jun 2010 23:27

induction vs recursion
Going through my old notes from Probability class I took a while ago, I came across at a proof which I marked as "proof by induction", but now I'm not so sure. The proof does kind of "recursive unwind". It looks correct and certainly has something to do with induction. I hope somebody can point out how to justify t... 22 Jun 2010 13:49

JSH: Using Usenet
On Jun 18, 8:49 pm, JSH <jst...(a)gmail.com> wrote: [snip] That is very important--you do not argue on Usenet to defend your ideas!!! The best ideas do not need your defense. Like I had an idea for my own definition of mathematical proof.  Want to see it? No, unless you can argue to defend this... 20 Jun 2010 18:58

Oriented linear least-squares
Hi, Here's an interesting problem: Let P = [p_1, ..., p_n] in R^{m x n}, and R = [r_1, ..., r_n] in R^{m x n} Find a matrix A in R^{m x m) with det(A) > 0, such that the least-squares error E = sum_{i = 1}^n || Ap_i - r_i ||^2 is minimized. The non-oriented version of this problem has solution A = (R... 19 Jun 2010 10:11