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                    | Stillwell J. — Yearning for the Impossible: The Surprising Truths of Mathematics |  
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                    | Предметный указатель |  
                    | | Set of natural numbers      199 Set of points      197
 set of rational numbers      197
 Set of rational numbers has uncountably many gaps      202
 Set of rational numbers has zero length      203
 Set of rational numbers is countable      200
 Set of real numbers is uncountable      202
 Set, countable      197 200
 Set, countable, does not fill line      202
 Set, countable, has zero length      203
 Set, uncountable      201 202
 Set, uncountable, smallest      209
 Shanks, William      84
 Sine      42 190
 Sine, hyperbolic      116
 Sine, wave      190
 Skolem, Thoralf      212
 slope      52
 Slope and area      93
 Slope and parallels      54
 Slope and tangents      89
 Slope and the Pappus theorem      65
 Slope of
  91 Slope of
  92 Slope of curves      90
 Slope of parabola      89
 Slope, limit of      90
 Space has noncommuting rotations      142
 Space, curved      108
 Space, dodecahedral      189
 Space, Euclidean      101 114 132
 Space, finite      101
 Space, flat      101 102 129
 Space, hyperbolic      101 123 189
 Space, infinite      102 198
 Space, medieval      102
 Space, non-Euclidean      116
 Space, periodic      177 188
 Space, rotation      141 142
 Space, rotation, quaternion representation      143
 Space, spherical      101
 Space, topology of      195
 Speiser, Andreas      107
 Spherical geometry      112 114 116
 Spherical geometry and Klein      125
 Spherical geometry in non-Euclidean space      116
 Spherical triangle      111
 Spherical triangle, angle sum      112
 Spivak, Michael      185
 Square and the torus      187
 Square, completing the      29
 Square, origin of word      5
 Square, root algorithm      15
 Square, the circle      84 99 207
 Stereographic projection      106
 Stereographic projection, preserves circles      107
 Stereographic projection, preserves infinitesimal shapes      107
 Stevin, Simon      10
 Stevin, Simon, and distributive law      27
 Stevin, Simon, and equal temperament      21
 Stevin, Simon, and irrationals      10 12
 Stevin, Simon, De Thiende      15
 Stevin, Simon, I'Arithmetique      10 27
 Stevin, Simon, introduced infinite decimals      15
 Stevin, Simon, Theory of the Art of Singing      22
 String theory      213
 Sum of complex numbers      34
 Sum of infinitesimals      93
 Sum of squares      140
 Sum of two squares      164
 Sum, infinite      83
 Sum, limit of      100
 Surd      xi
 Surd, origin of word      9
 Symmetry      144
 Symmetry and motion      145
 Symmetry and rotation      146
 Symmetry of polyhedra      144
 Symmetry, tetrahedral      146
 Tangent      89
 Tartaglia, Niccolo      30
 Taylor, Brook      190
 tetrahedron      81 144
 Tetrahedron, rotations of      146 147
 Tetrahedron, symmetry      146
 Tetrahedron, symmetry, represented by quaternions      146 148
 Tetrahedron, volume of      81
 Theodoric      9
 Theorem of Desargues      62 63
 
 | Theorem of Desargues and associative multiplication      75 Theorem of Desargues and Hubert      72 75
 Theorem of Desargues as an axiom      65
 Theorem of Desargues follows from Pappus      75
 Theorem of Desargues, spatial version      63
 Theorem of Pappus      62 63 76
 Theorem of Pappus and commutative addition      73
 Theorem of Pappus and commutative multiplication      74
 Theorem of Pappus as an axiom      65
 Theorem of Pappus, proof      64
 Theorem, angle sum      110
 Theorem, Bezout's      45
 Theorem, factor      41
 Theorem, Fermat's last      171
 Theorem, Fundamental, of Algebra      41
 Theorem, fundamental, of calculus      96
 Theorem, little Desargues      66
 Theorem, little Desargues, and Moufang      72
 Theorem, Pascal's      62
 Theorem, projective configuration      61
 Theorem, Pythagorean      5 12 76
 Three-square identity?      132
 Tilings of
  152 Tilings of
  153 Tilings of
  152 153 Tilings of hyperbolic plane      195
 Tilings of the plane      152
 Time      200
 Time and infinitesimals      100
 Tintoretto, Jacopo      107
 topology      177
 Topology and manifolds      189
 Topology and periodicity      187
 Topology of three-dimensional space      195
 Topology, algebraic      195
 Torricelli, Evangelista      156
 Torus      see 2-torus 187
 Tractrix      118
 Transcendental, means nonalgebraic      205
 Transcendental, number      xi
 Triangle of negative curvature      119
 Triangle, angle sum      50 112 116
 Triangle, angle sum, detects curvature      111
 Triangle, inequality      135
 Triangle, spherical      111
 Tribar      xi 177 179
 Tribar in 3-cylinder      177 183
 Trivium      2
 Two-square identity      34 130
 Two-square identity, complex      141
 Ulam, Stan      198
 Uncountability      201 202
 Uncountability of
  202 Uncountability, discovered by Cantor      202
 Unique prime factorization      155
 Unique prime factorization in Euclid      155
 Unique prime factorization in positive integers      162
 Unique prime factorization, assumed by Euler      170
 Unique prime factorization, complex      155
 Unique prime factorization, failure of      155 171
 Unique prime factorization, Gaussian      163 168
 Unique prime factorization, lost      169
 Unique prime factorization, regained      172
 UNITS      166 169
 Van Ceulen, Ludolph      84
 Vanishing points      55
 Vector addition      131 136
 Vector space      76
 Vectors      131
 Vermeer, Johannes      58
 Vibration, frequency of      3
 Vibration, modes of      3
 Viete, Francois      36 38
 Volume      11 79
 Volume as sum of infinitesimals      93
 Volume of box      80
 Volume of parallelepiped      81
 Volume of polyhedra      77
 Volume of tetrahedron      81
 Volume of triangular prism      81
 Von Staudt, Christian      68 72
 Von Staudt, Christian, and Pappus theorem      72
 Wallis, John      98
 Weber — Fechner law      4
 Weeks, Jeffrey      189
 Wessel, Caspar      38
 Whole numbers      see numbers natural
 Zhu Zaiyu      21
 Zhu Zaiyu, computation of
  22 Zu Chongzhi      84
 
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