Search (291 results, page 1 of 15)

  • × year_i:[1990 TO 2000}
  • × type_ss:"m"
  1. Gilster, P.: Digital literacy (1997) 0.11 
    0.107488856 = product of:
  0.21497771 = sum of:
    0.21497771 = sum of:
      0.12867226 = weight(_text_:p in 3340) [ClassicSimilarity], result of:
        0.12867226 = score(doc=3340,freq=4.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.7865184 = fieldWeight in 3340, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.109375 = fieldNorm(doc=3340)
      0.08630546 = weight(_text_:22 in 3340) [ClassicSimilarity], result of:
        0.08630546 = score(doc=3340,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.5416616 = fieldWeight in 3340, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.109375 = fieldNorm(doc=3340)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Online and CD-ROM review 22(1998) no.5, S.350-351 (P. Bradley)
  2. Arnopoulos, P.: Sociophysics : chaos and cosmos in nature and culture (1993) 0.08 
    0.07598163 = product of:
  0.15196326 = sum of:
    0.15196326 = sum of:
      0.07798716 = weight(_text_:p in 8057) [ClassicSimilarity], result of:
        0.07798716 = score(doc=8057,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.47670212 = fieldWeight in 8057, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.09375 = fieldNorm(doc=8057)
      0.07397611 = weight(_text_:22 in 8057) [ClassicSimilarity], result of:
        0.07397611 = score(doc=8057,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.46428138 = fieldWeight in 8057, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.09375 = fieldNorm(doc=8057)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Knowledge organization 22(1995) no.3/4, S.181-182 (N.P. Smith)
  3. Wyman, P.: Indexing specialities : medicine (1999) 0.08 
    0.07598163 = product of:
  0.15196326 = sum of:
    0.15196326 = sum of:
      0.07798716 = weight(_text_:p in 1370) [ClassicSimilarity], result of:
        0.07798716 = score(doc=1370,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.47670212 = fieldWeight in 1370, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.09375 = fieldNorm(doc=1370)
      0.07397611 = weight(_text_:22 in 1370) [ClassicSimilarity], result of:
        0.07397611 = score(doc=1370,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.46428138 = fieldWeight in 1370, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.09375 = fieldNorm(doc=1370)
  0.5 = coord(1/2)
    Footnote
    Rez. in: Indexer 22(2000) no.1, S.51 (J. Halliday)
  4. Cady, G.H.; McGregor, P.: Mastering the Internet (1996) 0.08 
    0.07598163 = product of:
  0.15196326 = sum of:
    0.15196326 = sum of:
      0.07798716 = weight(_text_:p in 5716) [ClassicSimilarity], result of:
        0.07798716 = score(doc=5716,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.47670212 = fieldWeight in 5716, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.09375 = fieldNorm(doc=5716)
      0.07397611 = weight(_text_:22 in 5716) [ClassicSimilarity], result of:
        0.07397611 = score(doc=5716,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.46428138 = fieldWeight in 5716, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.09375 = fieldNorm(doc=5716)
  0.5 = coord(1/2)
    Date
    13. 7.1998 19:21:22
  5. Olson, N.B.: Cataloging computer files (1992) 0.06 
    0.06331803 = product of:
  0.12663606 = sum of:
    0.12663606 = sum of:
      0.0649893 = weight(_text_:p in 7631) [ClassicSimilarity], result of:
        0.0649893 = score(doc=7631,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.39725178 = fieldWeight in 7631, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.078125 = fieldNorm(doc=7631)
      0.06164676 = weight(_text_:22 in 7631) [ClassicSimilarity], result of:
        0.06164676 = score(doc=7631,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.38690117 = fieldWeight in 7631, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=7631)
  0.5 = coord(1/2)
    Footnote
    Rez. in: International cataloguing and bibliographic control 22(1993) no.4, S.72 (R. Templeton); Technical services quarterly 11(1994) no.3, S.91-92 (P. Holzenberg)
  6. Schechter, B.: Mein Geist ist offen : Die mathematischen Reisen des Paul Erdös (1999) 0.06 
    0.06331803 = product of:
  0.12663606 = sum of:
    0.12663606 = sum of:
      0.0649893 = weight(_text_:p in 4755) [ClassicSimilarity], result of:
        0.0649893 = score(doc=4755,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.39725178 = fieldWeight in 4755, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.078125 = fieldNorm(doc=4755)
      0.06164676 = weight(_text_:22 in 4755) [ClassicSimilarity], result of:
        0.06164676 = score(doc=4755,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.38690117 = fieldWeight in 4755, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=4755)
  0.5 = coord(1/2)
    Biographed
    Erdös, P.
    Date
    19. 7.2002 22:02:18
  7. Gralla, P.: So funktioniert das Internet : ein visueller Streifzug durch das Internet (1998) 0.06 
    0.06331803 = product of:
  0.12663606 = sum of:
    0.12663606 = sum of:
      0.0649893 = weight(_text_:p in 667) [ClassicSimilarity], result of:
        0.0649893 = score(doc=667,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.39725178 = fieldWeight in 667, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.078125 = fieldNorm(doc=667)
      0.06164676 = weight(_text_:22 in 667) [ClassicSimilarity], result of:
        0.06164676 = score(doc=667,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.38690117 = fieldWeight in 667, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.078125 = fieldNorm(doc=667)
  0.5 = coord(1/2)
    Date
    15. 7.2002 20:48:22
  8. Otlet, P.: International organisation and dissemination of knowledge : selected essays of Paul Otlet (1990) 0.05 
    0.050654426 = product of:
  0.10130885 = sum of:
    0.10130885 = sum of:
      0.05199144 = weight(_text_:p in 2519) [ClassicSimilarity], result of:
        0.05199144 = score(doc=2519,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.31780142 = fieldWeight in 2519, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.0625 = fieldNorm(doc=2519)
      0.04931741 = weight(_text_:22 in 2519) [ClassicSimilarity], result of:
        0.04931741 = score(doc=2519,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.30952093 = fieldWeight in 2519, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0625 = fieldNorm(doc=2519)
  0.5 = coord(1/2)
    Date
    8. 3.2008 13:42:22
  9. Calvin, W.H.; Ojemann, G.A.: Einsicht ins Gehirn : wie Denken und Sprache entsteht (1995) 0.05 
    0.050654426 = product of:
  0.10130885 = sum of:
    0.10130885 = sum of:
      0.05199144 = weight(_text_:p in 60) [ClassicSimilarity], result of:
        0.05199144 = score(doc=60,freq=2.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.31780142 = fieldWeight in 60, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.0625 = fieldNorm(doc=60)
      0.04931741 = weight(_text_:22 in 60) [ClassicSimilarity], result of:
        0.04931741 = score(doc=60,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.30952093 = fieldWeight in 60, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0625 = fieldNorm(doc=60)
  0.5 = coord(1/2)
    Date
    22. 7.2000 18:41:04
    Footnote
    Rez. in: Frankfurter Rundschau Nr.23 vom 27.1.1996, S.ZB4 (P. Kruntorad); Spektrum der Wissenschaft 1996, H.3, S.116 (G. Wolf)
  10. Klau, P.: Internet Adressbuch (1995) 0.03 
    0.03249465 = product of:
  0.0649893 = sum of:
    0.0649893 = product of:
      0.1299786 = sum of:
        0.1299786 = weight(_text_:p in 1459) [ClassicSimilarity], result of:
          0.1299786 = score(doc=1459,freq=2.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.79450357 = fieldWeight in 1459, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.15625 = fieldNorm(doc=1459)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  11. Janich, P.: Ist Information ein Naturgegenstand? : Menschliches Handeln als Ursprung des Informationsbegriffes (1992) 0.03 
    0.032168064 = product of:
  0.06433613 = sum of:
    0.06433613 = product of:
      0.12867226 = sum of:
        0.12867226 = weight(_text_:p in 8932) [ClassicSimilarity], result of:
          0.12867226 = score(doc=8932,freq=4.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.7865184 = fieldWeight in 8932, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.109375 = fieldNorm(doc=8932)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Janich, P.: Die Grenzen der Naturwissenschaft: Erkennen als Handeln
  12. Bradley, P.: UKOLUG quick guide to the Internet (1995) 0.03 
    0.032168064 = product of:
  0.06433613 = sum of:
    0.06433613 = product of:
      0.12867226 = sum of:
        0.12867226 = weight(_text_:p in 4247) [ClassicSimilarity], result of:
          0.12867226 = score(doc=4247,freq=4.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.7865184 = fieldWeight in 4247, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.109375 = fieldNorm(doc=4247)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Footnote
    Rez. in: TIP applications 9(1995/96) nos.6/7, S.14-15 (P. Gillman)
  13. ¬Die Technik auf dem Weg zur Seele : Forschungen an der Schnittstelle Gehirn / Computer (1996) 0.03 
    0.030711103 = product of:
  0.061422206 = sum of:
    0.061422206 = sum of:
      0.0367635 = weight(_text_:p in 4939) [ClassicSimilarity], result of:
        0.0367635 = score(doc=4939,freq=4.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.22471954 = fieldWeight in 4939, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.03125 = fieldNorm(doc=4939)
      0.024658704 = weight(_text_:22 in 4939) [ClassicSimilarity], result of:
        0.024658704 = score(doc=4939,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.15476047 = fieldWeight in 4939, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03125 = fieldNorm(doc=4939)
  0.5 = coord(1/2)
    Content
    Enthält die Beiträge: PÖPPEL, E.: Radikale Syntopie an der Schnittstelle von Gehirn und Computer; LEM, S.: Unsaubere Schnittstelle Mensch / Maschine; DENNETT, D.C.: Bewußtsein hat mehr mit Ruhm als mit Fernsehen zu tun; SMITH CHURCHLAND, P.: Vernunft braucht Gefühle; BLAKEMORE, C.: Hirnforscher auf der Suche nach den richtigen Fragen; ROSENFIELD, I.: Kein Erkennen ohne Gedächtnis; VINCENT, J.-D.: Das Gehirn: ein Computer mit Leidenschaften; MORAVEC, H.: Körper, Roboter und Geist; SCHNEIDER, M.: OST-West-Lesearten der Unsterblichkeit; BHARATI, S.P.: Körper, Geist und Bewußtsein im indischen Veda; SHIMIZU, H.: Die ordnende Kraft des 'Ba' im traditionellen Japan; BAUMAN, Z.: Unsterblichkeit, Biologie und Computer; LINKE, D.B.: Chancen und Risiken der Neurotechnologie; LINDVALL, O.: Transplantation von Hirngewebe: was ist heute und in naher Zukunbft machbar?; FROMHERZ, P.: Funktionelle Kopplungen zwischen Neuronen und Chips; ZIEGLGÄNSBERGER, W.: Wanderungen von Nervenzellen bei der Hirnentwicklung; BIRBAUMER, N.: Selbststeuerung elektrischer Hirnpotentiale bei der Epilepsiebehandlung; PFURTSCHELLER, G.: Steuerung von Cursorbewegungen durch elektrosche Hirnpotentiale; ECKMILLER, R.: Das Retina-Implantat für die Wiedergewinnung des Sehens; RÖSSLER, R. u.a.: Lebensverlängerung durch Eingriff in die biologische Uhr; CHRISTALLER, T.: Kognitive Robotik; STEELS, L.: Homo cyber-sapiens oder Robo hominidus intelligens; Maschinen erwachen zu künstlichem Leben; MALSBURG, C. von: Die Barriere zwischen Gehirn und Computer; RITTER, H.: Mensch-Maschine-Kooperation: Roboter lernen, Gesten zu erkennen; PFEIFFER, F.: Eine sechsbeinige Laufmaschine nach biologischen Prinzipien; CHRISTALLER, T. u. J. HERTZBERG: LAOKOON: lernfähige, autonome, kooperierende Kanalroboter; WERTHEIMER, R.: Das elektrische Auge: ein technisches System als Kopilot des Autofahrers; MAGGIONI, C.: GestikComputer: Humanisierung der Mensch-Maschine-Kommunikation; RÖTZER, F.: Grundlagen einer neurotechnologischen Ethik; METZINGER, T.: Philosophische Stichworte zu einer Ethik der Neurowissenschaften und der Informatik; RÖTZER, F. u.a.: Entwurf für eine Ethik der Neurotechnologie
    Date
    22. 7.2000 18:57:50
  14. Advances in librarianship (1998) 0.03 
    0.03051359 = product of:
  0.06102718 = sum of:
    0.06102718 = product of:
      0.12205436 = sum of:
        0.12205436 = weight(_text_:22 in 4698) [ClassicSimilarity], result of:
          0.12205436 = score(doc=4698,freq=4.0), product of:
            0.15933464 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045500398 = queryNorm
            0.76602525 = fieldWeight in 4698, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4698)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Issue
    Vol.22.
    Signature
    78 BAHH 1089-22
  15. Delahaye, J.-P.: PI: Die Story (1999) 0.03 
    0.03048702 = product of:
  0.06097404 = sum of:
    0.06097404 = sum of:
      0.03939767 = weight(_text_:p in 1705) [ClassicSimilarity], result of:
        0.03939767 = score(doc=1705,freq=6.0), product of:
          0.16359726 = queryWeight, product of:
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.045500398 = queryNorm
          0.24082111 = fieldWeight in 1705, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5955126 = idf(docFreq=3298, maxDocs=44218)
            0.02734375 = fieldNorm(doc=1705)
      0.021576365 = weight(_text_:22 in 1705) [ClassicSimilarity], result of:
        0.021576365 = score(doc=1705,freq=2.0), product of:
          0.15933464 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.045500398 = queryNorm
          0.1354154 = fieldWeight in 1705, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.02734375 = fieldNorm(doc=1705)
  0.5 = coord(1/2)
    Abstract
    Der berühmte Physiker Richard P. Feynman sagte einmal: "In einem Glas Wein steckt das ganze Universum". Die ganze Mathematik steckt dagegen, so könnte man nach der Lektüre von Pi, die Story von Jean-Paul Delahaye meinen, in der Zahl Pi. Tatsache: Was den Physikern ihr Doppelspaltexperiment, ist dem Mathematiker die Kreiszahl -- eigentlich sollte sie nur das Verhältnis zwischen Umfang und Durchmesser eines Kreises definieren, aber im Laufe der Jahrhunderte entpuppte sie sich als Störenfried, der Rechengelehrten das Leben gehörig zur Hölle machte. Wie kann eine einfache Zahl Generationen von Mathematikern zur Verzweiflung treiben? Wieso verbrachten Gelehrte Jahrzehnte damit, wenige Nachkommastellen dieser Zahl auszurechnen -- wie zum Beispiel der Mathematiker Rutherford, der sich dummerweise ab der 152. Stelle verrechnete und daher genausogut fünf Jahre seines Lebens auf den Bahamas hätte Urlaub machen können? Wieso verbringen erwachsene Menschen ihre Zeit damit, in engen, mit Computern vollgestopften Zimmern zu hausen, die nicht beheizt, aber trotzdem warm sind von der Abwärme von Computerprozessoren, die auf der Suche nach Regelmäßigkeiten in der Zahl Pi sind? Genau das ist Delahayes Thema, und genau das hebt sein Werk aus der Masse vieler populärwissenschaftlicher Bücher zu ähnlichen Themen heraus: Der Autor macht nicht nur Forschung begreifbar, sondern steckt regelrecht an mit seiner Begeisterung für Pi. Wußten Sie, daß die Zahl Pi in den bisher gefundenen Nachkommastellen dieser Zahl -- statistisch verschlüsselt -- ihrerseits verborgen ist? Daß Pi in der Bibel vorkommt (allerdings mit einem lausigen Näherungswert)? Daß es eine Formel gibt, die Nachkommastellen liefert, die bis zur 42 Milliardsten Nachkommastelle mit denen von Pi identisch sind, danach aber nicht mehr -- und niemand weiß warum? Dies und noch viel, viel mehr Staunenswertes breitet Delahaye vor seinen Lesern aus, er stellt Mathematiker vor, die sich über Pi und ähnliche Zahlenmonster den Kopf zerbrochen haben: Leibnitz, Euler, Ramanujan -- dieses früh verstorbene Genie, das "mal eben" Formeln auf Notizblätter werfen konnte, die Mathematikern bis heute die Tränen in die Augen schießen lassen. Delahaye zeigt die brillianten Ideen, mit denen er und seine Kollegen heute ihren Problemen zu Leibe rücken, erklärt elegante Beweise, durchdachte Computeralgorithmen und faszinierende Skurrilitäten, wie zum Beispiel eine Zahl, die man zwar definieren, aber niemals berechnen kann. Wer sich auf dieses Buch einläßt, braucht als Nichtmathematiker schon etwas Mut -- denn Delahaye fordert seinen Lesern einiges ab: Unendliche Reihen, Zahlentheorie, wirklich knackige Algebra. Und manchmal geht der Computerexperte mit ihm durch -- möglich, daß nicht alle seine Kollegen alles unterschreiben würden, was er z.B. in Sachen rechnergestützte Mathematik von sich gibt. Aber viele der Schätze in diesem Buch kann man auch heben, ohne sich ein mathematisches Handbuch an die Seite legen zu müssen: Hier ist eben der gesunde Menschenverstand endlich wieder gefragt. "Pi ist ein Spielverderber", "Pi ist überall", "Pi ist eine Falle". Dieses Buch auch -- und eine Herausforderung.
    Content
    Einheitssacht.: Le fascinant nombre p [Pi]
    Date
    20. 3.2008 14:22:43
  16. Accart, J.-P.; Réthy, M.-P.: ¬Le métier de documentaliste (1999) 0.03 
    0.027572626 = product of:
  0.055145252 = sum of:
    0.055145252 = product of:
      0.110290505 = sum of:
        0.110290505 = weight(_text_:p in 4416) [ClassicSimilarity], result of:
          0.110290505 = score(doc=4416,freq=4.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.67415863 = fieldWeight in 4416, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.09375 = fieldNorm(doc=4416)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  17. Dennett, D.C.: Philosophie des menschlichen Bewußtseins (1994) 0.03 
    0.026154507 = product of:
  0.052309014 = sum of:
    0.052309014 = product of:
      0.10461803 = sum of:
        0.10461803 = weight(_text_:22 in 3166) [ClassicSimilarity], result of:
          0.10461803 = score(doc=3166,freq=4.0), product of:
            0.15933464 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045500398 = queryNorm
            0.6565931 = fieldWeight in 3166, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=3166)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 7.2000 19:22:32
  18. Norton, P.; Hahn, H.: Peter Nortons UNIX-Leitfaden (1991) 0.03 
    0.02599572 = product of:
  0.05199144 = sum of:
    0.05199144 = product of:
      0.10398288 = sum of:
        0.10398288 = weight(_text_:p in 6475) [ClassicSimilarity], result of:
          0.10398288 = score(doc=6475,freq=2.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.63560283 = fieldWeight in 6475, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.125 = fieldNorm(doc=6475)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  19. Seyer, P.: Understanding hypertext : concepts and applications (1992) 0.03 
    0.02599572 = product of:
  0.05199144 = sum of:
    0.05199144 = product of:
      0.10398288 = sum of:
        0.10398288 = weight(_text_:p in 7083) [ClassicSimilarity], result of:
          0.10398288 = score(doc=7083,freq=2.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.63560283 = fieldWeight in 7083, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.125 = fieldNorm(doc=7083)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  20. Baumgartner, P.; Payr, S.: Lernen mit Software (1994) 0.03 
    0.02599572 = product of:
  0.05199144 = sum of:
    0.05199144 = product of:
      0.10398288 = sum of:
        0.10398288 = weight(_text_:p in 7440) [ClassicSimilarity], result of:
          0.10398288 = score(doc=7440,freq=2.0), product of:
            0.16359726 = queryWeight, product of:
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.045500398 = queryNorm
            0.63560283 = fieldWeight in 7440, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5955126 = idf(docFreq=3298, maxDocs=44218)
              0.125 = fieldNorm(doc=7440)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Languages

  • e 144
  • d 134
  • f 5
  • m 5
  • pl 1
  • More… Less…

Types

  • s 29
  • i 19
  • b 5
  • el 3
  • d 1
  • h 1
  • x 1
  • More… Less…

Themes

Subjects

Classifications