hypercube

    a simple capture of acomplex optical sculpture made of mirrors and thin neon lights...

    A hypercube of dimension n has 2n "sides" (a 1-dimensional line has 2 end points; a 2-dimensional square has 4 sides or edges; a 3-dimensional cube has 6 2-dimensional faces; a 4-dimensional tesseract has 8 cells). The number of vertices (points) of a hypercube is 2n (a cube has 23 vertices, for instance).

    A simple formula to calculate the number of "n-2"-faces in an n-dimensional hypercube is: 2n2 − 2n

    The number of m-dimensional hypercubes (just referred to as m-cube from here on) on the boundary of an n-cube is

    , where and n! denotes the factorial of n.
    For example, the boundary of a 4-cube (n=4) contains 8 cubes (3-cubes), 24 squares (2-cubes), 32 lines (1-cubes) and 16 vertices (0-cubes).

    This identity can be proved by combinatorial arguments; each of the 2n vertices defines a vertex in a m-dimensional boundrary. There are ways of choosing which lines ("sides") that defines the subspace that the boundrary is in. But, each side is counted 2m times since it has that many vertices, we need to divide with this number. Hence the identity above.

    Comments and faves

    1. 5y12u3k, *melkor*, thecreativelens, Grant MacDonald, and 28 other people added this photo to their favorites.

    2. mareluna265 (50 months ago | reply)

      un'ltro scatto molto particolare... bello! notte..:-)

      --
      Seen on my Flickr home page. (?)

    3. Michele Greco (aka djmike_foh) (50 months ago | reply)

      che figata! bellissima la geometria in questa foto

    4. salambó (50 months ago | reply)

      Wow. It´s amazing.

    5. Marianna Carolina Sale (50 months ago | reply)

      molto bella Mario! complimenti!

    6. seveDB (50 months ago | reply)

      Anche questa e bela, come sempre.

    7. thecreativelens (50 months ago | reply)

      Very nice.
      --
      Seen in my contacts' photos. (?)

    8. Grant MacDonald (50 months ago | reply)

      very nice. Love the geometry!
      ----------------
      Congratulations your photo has been WOWed and awarded with a WowieKazowie!

      You are invited to join the WowieKazowie Group!

      Please tag your photo with "WowieKazowie"
      invited with SICI

    9. goodoldchuck (50 months ago | reply)

      That's really wonderful!

    10. desalinado (50 months ago | reply)

      inside the cube :) very clear.

    11. LadyBebo (50 months ago | reply)

      uao...la foto è belissima, la scultura doveva essere un vero trip!

    12. Stefania Maria Livraghi (50 months ago | reply)

      Molto originale, bella!

      WINNER
      You are my winner!
      Please add this photo to
      www.flickr.com/groups/mywinners/

      --
      Seen in my contacts' photos. (?)

    13. peggy. (50 months ago | reply)

      terrific abstract!
      Photo's to Smile About
      I saw this Great Photo in: Photos to Smile About Where QUALITY Counts!!
      If you haven't already done so, please remember to comment! Thanks!

    14. albaflickr (50 months ago | reply)

      I saw this best of the best picture in
      ~~ The Best Picture Gallery group ~~
      The Gallery I O

    15. berlondoner (50 months ago | reply)

      Fantastic picture, congratulation!

      Hi, I'm an admin for a group called Here, There and Everywhere, and we'd love to have this added to the group!

    16. Fotourbana (50 months ago | reply)

      vivid
      Vivid
      Please participate in our weekly contest.

    17. antonychammond (50 months ago | reply)

      Great geometric patterns... Photo's to Smile About
      I saw this Great Photo in: Photos to Smile About

    18. Mr. Wondering (50 months ago | reply)

      Quite Oblique!

       533613@N23

      Seen in Obliqua Mente / Oblique Mind group.
      Tag: "Obliqua Mente" "Oblique Mind"

    19. roy_mac_an_iarla (50 months ago | reply)

      Great shot, of what is obviously a cool sculpture!

      Nominee
      Congratulations!
      Your pic becomes nominee of "Shield Of Excellence"
      Please add this photo to the Shield Of Excellence Group.
      Please be sure this is tagged "SOE"

    20. amiplim_ (50 months ago | reply)

      Photo's to Smile About
      I saw this Great Photo in: Photos to Smile About

    21. giuhal (50 months ago | reply)

      adoro le geometrie :D ben riuscite

      Yellow
      See in not only photos
      mannaggia la pupazza

    22. eskipy (TGN) (50 months ago | reply)

      Incredible!! this image !

    23. Bluesrose (50 months ago | reply)

      ..and beautiful! :)

      I saw this great diagonal shot in

      Diagonal Love Affair!


      You are invited to display your image at
      ARTISTIC EXPRESSION.

    24. Len Janes Photography (50 months ago | reply)

      Great capture, nice shot.

      subawardMacro Award
      Congratulations on receiving your Macro Award, and I think this photo deserves another one!

      Hi, I'm an admin for a group called Breathtaking (add 1,award 1,invite 1), and we'd really love to have your photo added to the group. Collect 5 green icons for New “Gold Award”.

      This photo took my BREATH away

      Pls add this photo to the
      BREATHTAKING group.


      This photo deserves a big HEART,
      please post this beautiful picture at

      Heart Awards Group .

      Nominee
      Congratulations!
      Your pic becomes nominee of "Shield Of Excellence"
      Please add this photo to the Shield Of Excellence Group.
      Please be sure this is tagged "SOE"

      &quotImage
      Your picture deserves to be with all other photos with superb Image Quality (IQ). Please consider submitting this to the Image Quality (IQ) Group.

      This is Perfect!

      Perfect Photographer Invitation

      This photo has been selected for The Perfect Photographer Award
      Please add this image to The Perfect Photographer, Awards 2 Fave 2
      And tag the photo with "The Perfect Photographer"

      You work deserves to be Applauded!

      theloveshack

      This photo has been selected for TheLoveShack Award
      INVITE ONLY -- Please add this image to TheLoveShack
      POST 1 & AWARD 2 -- Please tag with “TheLoveShack”

    25. slipper buddha (50 months ago | reply)

      simple made, but beautifull space...

    26. nicolas muguet (50 months ago | reply)

      Amazing !
      Great shot

      subawardMacro Award
      Congratulations on receiving your Macro Award, and I think this photo deserves another one!

    27. inge helene (50 months ago | reply)

      Geometrical beauty. Fascinating different tones of blue!
      Photo's to Smile About
      I saw this Great Photo in: Photos to Smile About

    28. jan4photos (50 months ago | reply)

      fantastic geometry, great spatial awareness
      vivid
      Vivid
      Please participate in our weekly contest.

    29. Niquitin (50 months ago | reply)

      Beautiful - like an organism. Wonderful depth!

    30. deepintheforestcat (50 months ago | reply)

      Outstanding.
      We Invite you to submit your work to the group

      This art piece is recognized as a very beautiful work!!!

      Outstanding Art!!!!!!!!

    31. atomareaufruestung (50 months ago | reply)

      very interesting shot!

    32. Etrusia UK (50 months ago | reply)

      Hi, I'm an admin for a group called Picture Perfect>>>>(pst 1/cmnt3)>>>> New Contest Open, and we'd love to have this added to the group!


      You are invited to add this image to the Awesome Picture Award group!

    33. ~morsus~ (50 months ago | reply)

      I saw this spacy photo in : ~PAINTING WITH SPACE~

    34. The Lady of Shalot [mostly offline these days] (50 months ago | reply)

      Notevole intreccio, e bello anche il colore.
      Mi piacciono i neon... viste le installazioni a Villa Panza (Varese)?
      Nature made this excellent work
      with your hand support.

      Seen in Alchimia Fotografica.

    35. **Elle** (50 months ago | reply)

      Ciao Artista :)
      Incredibile il tuo occhio... la tua anima... :)
      Buonissimo weekend con un bacio

      this is an exceptional image
      you are invited to add your photo to

      just imagine | invitation only

      Please tag with "JustImagine"

    36. 77dps (50 months ago | reply)


      Abstract Art Award

      ***~~**~~**~~**~~**~~**~~***

    37. chonyta (50 months ago | reply)

      Mario, this is so ingenious!

      ----------------
      subawardMacro Award
      Congratulations on receiving your Macro Award, and I think this photo deserves another one!
      commented with SICI

      ----------------
      vivid Vivid
      commented with SICI

      ----------------
      WINNER
      Definitely a winner!!!
      You deserve another one.
      Found in www.flickr.com/groups/mywinners/
      commented with SICI

      ----------------
      I think this is blue enough to qualfiy for this group:

      Now That's Blue!

      We Would Love Your Photo Added To The Group! Top 25 Blue.
      invited with SICI

      ----------------
      Great Shot! Please join us at:
      I Think this is Art !
      invited with SICI

    38. maybeetle (50 months ago | reply)

      veramente spettacolare...

    39. *Katch* (50 months ago | reply)

      I saw this great diagonal shot in

      Diagonal Love Affair!

    ← prev 1 2
    (58 comments)
    keyboard shortcuts: previous photo next photo L view in light box F favorite < scroll film strip left > scroll film strip right ? show all shortcuts