## Mathematics Today: Twelve Informal EssaysA dozen essays survey current work in number theory, symmetry, scheduling theory, statistical analysis, and computation theory, as well as applications of mathematics in meteorology, economics, and population research |

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### Contents

MathematicsOur Invisible Culture Allen L Hammond | 15 |

Part Two | 35 |

Groups and Symmetry lonathan Alperin | 65 |

Copyright | |

9 other sections not shown

### Common terms and phrases

algebra algorithm analysis applications assigned behavior bicycle boundary calculation called century colors concept CP schedule critical path curve decision problem described design of experiments differential Diophantine equations economic equations Euclidean example experiment experimental fact Figure finite first-fit Four-Color Conjecture function Gauss geodesic geometry given graph guessing halt halting problem ideas large number Lie groups Lobachevskian manifold mathematicians mathematics methods move normal map NP-complete number theory observations optimal optimal stopping packing packing problem patients pattern permutations physical plane players population possible precedence constraints prediction prime numbers probability problem procedure processors proof prove random walk reducible configurations result Riemann Riemann Hypothesis rotation secretary problem sequence sequential sequential analysis simple solutions space SPRT square statistical step stopping rule string structure symmetry tape tasks theorem tion treatment trials Turing-Post program unavoidable set University unsolvable variables vector