# S.O.S. Mathematics CyberBoard

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helmut

0

6462

Tue, 2 Jan 2007 00:13:08 UTC

Topics

mummyto3boys2girl

5

386

Mon, 22 Apr 2013 19:36:10 UTC

matrix multiplication

anjoo

4

288

Tue, 26 Mar 2013 05:53:54 UTC

xmckenziex

3

235

Sun, 24 Mar 2013 07:26:28 UTC

Find a function from a Recursive Formula

loveinla

0

237

Tue, 12 Mar 2013 20:24:18 UTC

equation with logarithm

jaisson

5

313

Tue, 12 Mar 2013 19:59:17 UTC

Need help understanding convergence of hypergeometric series

proposedsolutions

14

1741

Sun, 2 Dec 2012 03:02:54 UTC

Abstract Algebra proof Verification

jsromejoe

3

553

Sun, 11 Nov 2012 06:06:00 UTC

Modeling Mathematics

[ Go to page: 1, 2 ]

mopar969

15

1570

Fri, 2 Nov 2012 23:08:51 UTC

Solving partial differential equation using variable separab

poojitham

1

431

Sun, 28 Oct 2012 06:17:01 UTC

Find Fourier series for f(x)=cos^2(x)

rmohan10

4

641

Sat, 27 Oct 2012 23:00:37 UTC

Modeling Mathematics

mopar969

1

682

Wed, 26 Sep 2012 17:57:19 UTC

Working Proof of Fastest Matrices Algorithm(In-Progress)

Gregg Schaffter

0

1056

Thu, 5 Jul 2012 10:28:24 UTC

Josephus permutation

isjones

3

1194

Tue, 15 May 2012 16:53:47 UTC

What is this process called?

jjbyram

1

802

Thu, 10 May 2012 15:39:54 UTC

two problems about invariant subspace problem

mami

3

1371

Thu, 3 May 2012 16:49:34 UTC

Is SU(1) isomorphic to U(1)?

jakey34

2

836

Thu, 12 Apr 2012 08:46:29 UTC

HELP!! Relation xRx problem

GoldenPho

3

1001

Sat, 31 Mar 2012 00:56:06 UTC

Let G be a group, let a Ɛ G and let k be a positive integer.

b3n278

3

1481

Sun, 12 Feb 2012 18:41:27 UTC

Show that the subset

b3n278

1

869

Sun, 12 Feb 2012 07:13:54 UTC

Help with Z transform

catavio

2

952

Sat, 11 Feb 2012 22:16:31 UTC

Enumerable and diagonalization argument

RandomNumber

7

2164

Tue, 1 Nov 2011 23:46:18 UTC

Help with a fourier series

JmsNxn92

6

1668

Sun, 16 Oct 2011 21:11:49 UTC

Prove f(x^k) = k*f(x) for all rational k

CaliFine

10

6112

Tue, 20 Sep 2011 22:00:29 UTC

limits in double sum

grafan

8

2142

Mon, 19 Sep 2011 22:35:30 UTC

imposible equation

valdense

5

1809

Mon, 12 Sep 2011 01:36:04 UTC

Proof By Induction

MathWhiz

3

2137

Tue, 21 Jun 2011 20:52:59 UTC

On Borell's Theorem (Gaussian processes)

Nobody1111

4

2067

Thu, 9 Jun 2011 14:27:58 UTC

complex log

neginf

3

2145

Thu, 7 Apr 2011 01:49:01 UTC

Contour Integration

StarKid

2

1679

Mon, 4 Apr 2011 15:47:25 UTC

Stochastic processes -

allandmunja

0

1621

Sun, 3 Apr 2011 23:26:53 UTC

Korovkin Theory

symbian

3

2520

Sat, 19 Mar 2011 18:05:09 UTC

Homology Calculation

qwirk

7

2774

Tue, 15 Mar 2011 02:45:00 UTC

Slack Value; Linear Programming

mlefcowitz

1

1848

Fri, 11 Mar 2011 20:06:23 UTC

Fractional Linear Functions

khooley

1

2081

Wed, 19 Jan 2011 14:38:49 UTC

limits also on with trig

brodie6

11

5353

Tue, 5 Oct 2010 01:57:36 UTC

Integral over standard n-simplex

BayesianGuy

2

2479

Tue, 28 Sep 2010 18:37:58 UTC

Binomial Theorem

IloveManUtd

6

3677

Tue, 21 Sep 2010 06:50:21 UTC

Problem on fourier series

imvaibhav

1

2062

Sun, 19 Sep 2010 09:04:26 UTC

tiha

2

2076

Tue, 14 Sep 2010 13:26:54 UTC

Binomial expansions

IloveManUtd

3

2312

Mon, 13 Sep 2010 14:49:07 UTC

Binomial ratios

IloveManUtd

1

1903

Mon, 13 Sep 2010 14:48:34 UTC

convolution of exp(-a*norm(x)^2) and exp(-b*norm(x)^2) ?

jefferson_lc

1

2523

Tue, 17 Aug 2010 06:51:28 UTC

Bessel Functions Questions

DuncanM

2

3292

Sat, 31 Jul 2010 23:22:51 UTC

4th moment of a wiener process

Bazman

12

8647

Tue, 20 Jul 2010 12:19:46 UTC

Efficent way to find combination of sets (Discrete Maths)

PeteSpeed

1

4414

Fri, 16 Apr 2010 04:00:51 UTC

Tricky node joining problem

Guest

2

3130

Fri, 16 Apr 2010 02:02:10 UTC

Show that the bing's house with two rooms is contractible!

gylpm

2

3517

Tue, 9 Mar 2010 06:09:26 UTC

Segments, posets

vaevictis59

0

2156

Sun, 7 Mar 2010 22:45:21 UTC

Intitial Segments, Posets

selenne431

0

2255

Sun, 7 Mar 2010 22:35:36 UTC

Countable Principle of Choice

selenne431

1

2577

Sun, 7 Mar 2010 14:14:14 UTC

Surjection, Uncountable Set

vaevictis59

1

2467

Sun, 7 Mar 2010 14:11:22 UTC

continued fractions and the extended Euclidean Algorithm

sombra55

5

4525

Sun, 28 Feb 2010 21:39:53 UTC

definability with parameters (logic)

Daria

2

2866

Thu, 18 Feb 2010 02:42:23 UTC

Convolution and its phase

crazymath

0

2932

Mon, 4 Jan 2010 19:54:03 UTC

"Hurwitz Problem"

lepton

4

4700

Tue, 1 Dec 2009 06:32:49 UTC

Conditional expectation

yavanna

2

3336

Mon, 30 Nov 2009 14:54:12 UTC

Galois field

Tom2

2

3557

Sun, 22 Nov 2009 23:52:15 UTC

Integer Programming

john_math

0

2661

Wed, 18 Nov 2009 17:54:52 UTC

problem about almost sure and L1 convergence

yavanna

2

3634

Sat, 14 Nov 2009 10:49:06 UTC

Busy Beaver Functions

goteamusa

1

3386

Fri, 30 Oct 2009 18:34:16 UTC

Proof: f(x) = 2x + 3 . continuous at x = 1

Susan123456

2

3943

Sat, 10 Oct 2009 14:59:09 UTC

Simple Question: {{0}} contains {{0,{0}}

Susan123456

2

3594

Sun, 4 Oct 2009 16:18:31 UTC

Prove that there exists a 3-digit natural number

Susan123456

7

5981

Sun, 27 Sep 2009 17:44:57 UTC

collapsing a higher dimension function along one axis

psycone

0

2900

Sun, 27 Sep 2009 11:57:28 UTC

Center and Centroid

mingcai6172

0

2778

Sat, 26 Sep 2009 21:22:59 UTC

College Geometry - N distinct points

Susan123456

2

3920

Mon, 14 Sep 2009 21:44:08 UTC

Denial

Susan123456

4

4476

Mon, 14 Sep 2009 16:29:49 UTC

|a - b| = |b - a|

Susan123456

2

3481

Mon, 14 Sep 2009 02:49:27 UTC

Proof by backward technique - "if ab > 0 and bc <

Susan123456

2

3860

Mon, 14 Sep 2009 02:47:45 UTC

Symbolic form for "f is continuous at a"

Susan123456

2

4034

Sat, 12 Sep 2009 21:00:47 UTC

fairly simple question (? maybe)

complex

3

5105

Sat, 12 Sep 2009 11:05:34 UTC

Quantifiers

Susan123456

1

3351

Fri, 11 Sep 2009 01:50:38 UTC

Distribution questions

ej

2

3862

Mon, 24 Aug 2009 16:56:44 UTC

Integration by substitution

amr1968

1

3526

Tue, 28 Jul 2009 02:35:38 UTC

Billiard Geometry: Rational Polytopes

akumi

2

14648

Fri, 24 Jul 2009 10:12:48 UTC

Distribution questions

ej

0

2890

Wed, 15 Jul 2009 16:25:27 UTC

Proof theory

woodpecker

0

3066

Mon, 6 Jul 2009 22:04:01 UTC

compute travelled speed?

raedbenz

1

3558

Tue, 30 Jun 2009 06:29:46 UTC

Hypersphere

sdkans

1

3704

Wed, 27 May 2009 20:42:46 UTC

usagi713

5

6069

Thu, 7 May 2009 15:25:34 UTC

Investigation of a logistic model in Mathematical Biology

hamperbox

0

3556

Mon, 27 Apr 2009 00:53:52 UTC

Iterative scheme to arrive at a solution?

Jeff Byram

1

3911

Fri, 24 Apr 2009 22:00:28 UTC

jayryap

5

7200

Fri, 24 Apr 2009 14:59:29 UTC

Measurability

Sarah

3

5072

Mon, 23 Mar 2009 21:36:03 UTC

Hyperbolic Geometry...

2

4439

Fri, 20 Mar 2009 02:07:03 UTC

Multiple Integer distribution equation (algebra and up)

Unknown

1

4181

Sun, 15 Mar 2009 20:57:48 UTC

Combinations with no specific subset number (problem).

smudge

1

3955

Sat, 14 Mar 2009 21:55:51 UTC

measure theory

Sarah

0

3484

Mon, 9 Mar 2009 20:23:53 UTC

Graphics Math Questions

Dragorn

2

4678

Sat, 21 Feb 2009 21:10:24 UTC

luan

5

5832

Wed, 18 Feb 2009 00:43:09 UTC

convergent sequence

hihi23

1

4443

Fri, 13 Feb 2009 15:07:15 UTC

Help with Induction problem

8

8191

Wed, 11 Feb 2009 17:30:48 UTC

Cellular Automata Complexity

voskresiniye

0

3727

Sun, 8 Feb 2009 03:57:48 UTC

Fixed points and stability, vector fields

fk378

1

4708

Tue, 27 Jan 2009 06:12:14 UTC

Challenging problem with Box counting dimension

Moosquibe

1

4492

Thu, 22 Jan 2009 08:04:25 UTC

functional equation

mathemagics

8

7793

Tue, 20 Jan 2009 20:08:48 UTC

Induction

Beta

4

5582

Tue, 20 Jan 2009 11:26:33 UTC

two sequence need to prove they have the same limits

Nivg

5

7074

Thu, 4 Dec 2008 12:56:13 UTC

Math for Computer Graphics

markweber

3

6541

Tue, 2 Dec 2008 09:04:57 UTC

ggyyree

0

4011

Mon, 24 Nov 2008 18:03:56 UTC

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