continuum hypothesis 75
corollary 204
correlation 144 –6
counterexample 69 , 204
counting 4 , 28 –9, 30 , 119 , 164 –7
cubed numbers 81 , 93 , 96 , 98 , 196
curves 88 –91
algebraic 90
calculus 79
Koch snowflake 102 , 103
normal 140 –3
D
data, connecting 144 –7
da Vinci, Leonardo 89 , 96
decimal numbers 10 –11
converting fractions 14 –15
origins 8
deficient numbers 41
De Morgan, Augustus 66 , 70 , 73 , 120
denominator 12 , 204
Descartes, René 32 , 42 , 89 , 90
diet problem 180 –3
differentiation 76 , 77 –9, 204
dimensions 96 –9
fractional 99 , 103
Diophantine equations 62 –3, 196, 197 , 204
direct method 69 –70
discrete 204
discrete geometry 112 –15, 167
distributions 136 –9, 140 , 204
dividing
Euclid’s algorithm 61 –3
zero 6 , 7
divisor 204
DNA 89 , 151
dodecahedron 93
donut 92 , 94 , 122
Dudeney, Henry 176 , 179
Dürer, Albrecht 169 –70