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  1. Unsolved Challenge
    Simple closed form for integral

    Started by Tony, April 23rd, 2018 15:04
    2pi1-ln2$$, closed, dt=ln2over, show, simple
    • Replies: 0
    • Views: 37
    Last Post: April 23rd, 2018 15:04
    by Tony  Go to last post
  2. Unsolved Challenge
    A hard integral gives a simple closed form

    Started by Tony, April 10th, 2018 17:50
    closed, form, hard, integral, simple
    • Replies: 1
    • Views: 89
    Last Post: April 10th, 2018 23:28
    by GJA  Go to last post
  3. multivariable conservative field

    Started by kenporock, March 3rd, 2018 07:13
    closed, conservative, field, multivariable, path
    • Replies: 1
    • Views: 60
    Last Post: March 3rd, 2018 07:23
    by I like Serena  Go to last post

    Forum:
    Calculus

  4. Open and Closed in V ... D&K Proposition 1.2.17 ... ...

    Started by Peter, February 5th, 2018 23:23
    • Replies: 2
    • Views: 114
    Last Post: February 6th, 2018 08:24
    by Peter  Go to last post

    Forum:
    Analysis

  5. Problem Of The Week # 292 - Dec 08, 2017

    Started by Ackbach, December 8th, 2017 12:39
    closed, frac1a_k, left1, potw, problem
    • Replies: 1
    • Views: 141
    Last Post: December 14th, 2017 11:09
    by Ackbach  Go to last post
  6. Derive a closed form and find its limit

    Started by lfdahl, November 4th, 2017 15:56
    $s_nk$, closed, find, form, limit
    • Replies: 6
    • Views: 271
    Last Post: November 6th, 2017 16:41
    by lfdahl  Go to last post
  7. Subspace of a vector space

    Started by Yankel, October 12th, 2017 07:50
    closed, empty, show, space, vector
    • Replies: 3
    • Views: 257
    Last Post: October 12th, 2017 14:18
    by Yankel  Go to last post
  8. Closed set relative

    Started by Julio, April 3rd, 2016 19:41
    $atimes, closed, question, relative, set
    • Replies: 2
    • Views: 629
    Last Post: July 7th, 2017 13:20
    by HallsofIvy  Go to last post
  9. [SOLVED] Prove or disaprove the statements

    Started by mathmari, January 2nd, 2017 17:44
    2 Pages
    1 2
    $a$, $rightarrow$, bounded, closed, continuous
    • Replies: 13
    • Views: 1,321
    Last Post: January 9th, 2017 06:14
    by mathmari  Go to last post

    Forum:
    Analysis

  10. Problem of the Week #238 - Dec 20, 2016

    Started by Euge, December 20th, 2016 18:22
    closed, potw, read, remember, submission
    • Replies: 1
    • Views: 454
    Last Post: December 28th, 2016 00:47
    by Euge  Go to last post
  11. Extreme points of L^p[0,1] on unit closed ball

    Started by Kokuhaku, September 22nd, 2016 05:51
    $l^p[0, 1]$, closed, extreme points, unit ball
    • Replies: 2
    • Views: 541
    Last Post: September 23rd, 2016 08:23
    by Kokuhaku  Go to last post

    Forum:
    Analysis

  12. Algebraically Closed Fields

    Started by Peter, June 29th, 2016 23:05
    algebraically, closed, definition, k[x_1, x_2
    • Replies: 2
    • Views: 406
    Last Post: June 30th, 2016 03:42
    by Peter  Go to last post
  13. What does the curve represent?

    Started by evinda, November 9th, 2015 15:31
    3 Pages
    1 2 3
    $gamma$, $mathbbr^2$, closed, cos, curve
    • Replies: 29
    • Views: 2,563
    Last Post: January 17th, 2016 18:49
    by evinda  Go to last post
  14. The distance is attained by a unique point

    Started by evinda, November 17th, 2015 18:15
    • Replies: 5
    • Views: 1,191
    Last Post: December 30th, 2015 18:54
    by evinda  Go to last post

    Forum:
    Analysis

  15. [SOLVED] Show determinant operator Det not linear

    Started by ognik, November 17th, 2015 22:02
    addition, a_1jc_ij, closed, da_n, sum_j=1^n
    • Replies: 6
    • Views: 745
    Last Post: November 18th, 2015 19:25
    by ognik  Go to last post
  16. The reparametrization is not closed

    Started by mathmari, October 13th, 2015 12:48
    2 Pages
    1 2
    $gamma, closed, curve, reparametrization, t=cos
    • Replies: 17
    • Views: 1,407
    Last Post: October 25th, 2015 09:44
    by mathmari  Go to last post
  17. [SOLVED] Close threads as not solved?

    Started by ognik, October 20th, 2015 18:32
    close threads, closed, posts, solved, threads
    • Replies: 1
    • Views: 783
    Last Post: October 23rd, 2015 13:46
    by MarkFL  Go to last post
  18. [SOLVED] Closed curve

    Started by mathmari, October 12th, 2015 07:14
    $t$, $textbf$gamma$$, closed, cos, curve
    • Replies: 9
    • Views: 1,194
    Last Post: October 20th, 2015 22:31
    by johng  Go to last post
  19. [SOLVED] Isn't this the definition of a closed curve?

    Started by mathmari, October 12th, 2015 14:13
    $t$-periodic, $textbf$gamma$$, closed, curve, definition
    • Replies: 2
    • Views: 354
    Last Post: October 13th, 2015 10:56
    by mathmari  Go to last post
  20. Open and closed sets

    Started by evinda, September 26th, 2015 16:55
    2 Pages
    1 2
    • Replies: 13
    • Views: 1,686
    Last Post: September 30th, 2015 15:24
    by I like Serena  Go to last post

    Forum:
    Analysis

  21. Kirchoff's Law equation 3 unknowns Help!!

    Started by JonB, September 17th, 2015 10:07
    closed, currents, kirchoffs, law, loops
    • Replies: 1
    • Views: 611
    Last Post: September 17th, 2015 10:16
    by Ackbach  Go to last post
  22. [SOLVED] Vector Subspaces

    Started by bbelson01, July 31st, 2015 22:59
    closed, element, r^3, scalar, vector
    • Replies: 2
    • Views: 557
    Last Post: August 1st, 2015 22:20
    by bbelson01  Go to last post
  23. [SOLVED] Discrete Math: Linear Inhomogeneous Recurrence

    Started by stanyeo1984, April 26th, 2015 17:57
    4 Pages
    1 2 3 ... 4
    an-2, an-3, an-4, clear, closed, form, function, generating, n-2, plz, sequence, solve, websites
    • Replies: 32
    • Views: 2,978
    Last Post: May 5th, 2015 10:12
    by johng  Go to last post
  24. Problem of the Week #146 - March 16, 2015

    Started by Jameson, March 16th, 2015 19:45
    closed, intervals, length, problem, read
    • Replies: 1
    • Views: 621
    Last Post: March 23rd, 2015 22:05
    by Euge  Go to last post
  25. Find closed form expression for a given sum

    Started by anemone, March 17th, 2015 03:02
    closed, expression, find, form, sum
    • Replies: 3
    • Views: 719
    Last Post: March 20th, 2015 00:01
    by kaliprasad  Go to last post
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