number systems 8 –11
numerator 12 , 205
numerology 39 , 42
O
octahedron 93
one-to-one correspondence 28, 30 , 205
optimum solution 205
P
paper, sizes 48 –9
parabola 17 , 88 , 89 , 115
parallel lines 108 , 114 , 115
parallel postulate 75 , 108 –11
Pascal, Blaise
Pascal’s theorem 115
Pascal’s triangle 52 –5, 142
probability 125
Pearson’s correlation 144 –5
pendulums 105 –6
perfect numbers 40 –3
Pick’s theorem 113
pi (π) 20 -3
place-value system 8 , 205
Poincaré, Henri 95 , 102
Poisson distribution 137 , 139
polygons 16 , 21 , 82 –3, 113
polyhedra 92 –4, 205
polynomial time 187
predictions 106 , 139
prime numbers 36 –9, 43 , 83 , 200 , 203 , 205
prisoner’s dilemma 191
probability 124 –7
Bayes’s theory 128 –31
birthday problem 132 –5
conditional 128 –9
distributions 136 –9
e 27
genetics 148 –51
normal curve 142 –3