User Arjang - Mathematics Stack Exchange

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	2,437 reputation	bio	website		visits	member for	2 years, 6 months
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Final Error of two module in serial and parallel

nov 16 '11 at 23:27 Ross Millikan 83.5k

6

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3

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What are usual notations for surjective, injective and bijective functions?

reference-request notation

nov 8 '11 at 15:37 Srivatsan 15.6k

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2

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92

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What are equivalence classes that would not have (1+1 and 2 ) or (2 x 3 and 6) in same classes?

soft-question

oct 27 '11 at 12:28 Rasmus 9,458

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2

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486

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In Towers of Hanoi (with 3 sticks and n disks without backtracking), do all legal sequences of moves reach the solution?

recreational-mathematics

oct 3 '11 at 4:13 Arjang 2,437

5

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1

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208

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Generalisation of dualities, what concept do dualities represent?

soft-question intuition philosophy

sep 12 '11 at 23:41 t.b. 43.2k

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4

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367

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Generalisation of the identity $\sum\limits_{k=1}^n {k^3} = \bigg(\sum\limits_{k=1}^n k\bigg)^2$

sequences-and-series

sep 4 '11 at 12:44 J. M. 38.9k

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5

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320

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Examples of applying L'Hôpitals rule ( correctly ) leading back to the same state?

calculus limit

aug 26 '11 at 21:19 zyx 11k

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3

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176

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Using $O(n)$ to determine limits of form $1^{\infty},\frac{0}{0},0\times\infty,{\infty}^0,0^0$?

asymptotics computational-complexity

aug 26 '11 at 8:40 Arjang 2,437

3

8

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3

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477

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What could be an intuitive explanation for $ \sum\limits_{k=1}^{\infty}\frac{1}{k2^k} = \log 2 $?

sequences-and-series intuition

aug 25 '11 at 3:39 J. M. 38.9k

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$ \cos(\hat{A})BC+ A\cos(\hat{B})C+ AB\cos(\hat{C})=\frac {A^2 + B^2 + C^2}{2} $

reference-request trigonometry

aug 3 '11 at 18:51 Américo Tavares 20.7k

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3

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329

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What are the cases of not using (countable) induction?

logic elementary-set-theory induction

aug 2 '11 at 22:02 Brian M. Scott 154k

2

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2

answers

274

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What is the connection between Chinese remainder theorem and Lagrange interpolation?

soft-question

jul 28 '11 at 16:23 J. M. 38.9k

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4

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576

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Different ways to represent functions other than Laurent and Fourier series?

analysis

jul 23 '11 at 12:13 J. M. 38.9k

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227

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Beside transcendental or uncomputable numbers what other types of numbers are there?

soft-question

jul 22 '11 at 13:08 André Nicolas 161k

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4

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222

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What property of groups is related to the symmetries?

group-theory

jul 16 '11 at 15:36 Christian Blatter 32.6k

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0

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197

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What is known about functions of type $f(n+1) = f(n)^ {f(n)}$?

soft-question functional-equations recreational-mathematics

jun 13 '11 at 10:54 Arjang 2,437

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3

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4

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134

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what are linear divisors of integer powers?

elementary-number-theory

jun 12 '11 at 18:02 André Nicolas 161k

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200

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Asking questions without providing a definition

logic

may 31 '11 at 0:03 Arjang 2,437

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150

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What results are known If $f,g$ are both analytic in $\mathbb{C}$, having infinitely many poles or zeros for the same $z$'s?

complex-analysis

apr 29 '11 at 13:07 Jonathan Gleason 1,915

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Image of a math problem that was stated in Cuneiform, Arabic, Latin and Finally in modern math notation

reference-request math-history

apr 18 '11 at 8:16 Sam Nead 1,860

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4

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1

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547

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Is there an Inverse Gamma $\Gamma^{-1} (z) $ function?

analysis special-functions

feb 20 '11 at 8:23 Community♦ 1

2

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1

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147

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Representing area as an integral independent of the coordinate systems

calculus

jan 29 '11 at 14:21 Christian Blatter 32.6k

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2

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150

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Is $\ p_n^{\pi(n)} < 4^n$ where $p_n$ is the largest prime $\leq n$?

number-theory

jan 2 '11 at 4:35 Matthew Conroy 3,840

3

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1

answer

150

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Consequences of boy/girl probability disparity on population

probability

dec 30 '10 at 0:28 InterestedGuest 2,946

4

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4

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346

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Request for example of a value of limit of a sequence where sequence does not converge

analysis logic

dec 28 '10 at 14:35 Mariano Suárez-Alvarez♦ 53.2k

Arjang

55 Questions