## Mathematical Connections: A Companion for Teachers and OthersMathematical Connections is about some of the topics that form the foundations for high school mathematics. It focuses on a closely knit collection of ideas that are at the intersection of algebra, arithmetic, combinatorics, geometry, and calculus. Most of the ideas are classical: methods for fitting polynomial functions to data, for summing powers of integers, for visualizing the iterates of a function defined on the complex plane, or for obtaining identities among entries in Pascal's triangle. Some of these ideas, previously considered quite advanced, have become tractable because of advances in computational technology. Others are just beautiful classical mathematics--topics that have fallen out of fashion and that deserve to be resurrected. While the book will appeal to many audiences, one of the primary audiences is high school teachers, both practicing and prospective. It can be used as a text for undergraduate or professional courses, and the design lends itself to self study. Of course, good mathematics for teaching is also good for many other uses, so readers of all persuasions can enjoy exploring some of the beautiful ideas presented in the pages of this book. |

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### Vsebina

Chapter 1 Difference Tables and Polynomial Fits | 1 |

The Algebra of Polynomials | 53 |

Chapter 3 Complex Numbers Complex Maps and Trigonometry | 101 |

Chapter 4 Combinations and Locks | 161 |

Chapter 5 Sums of Powers | 199 |

235 | |

237 | |

About the Author | 239 |

Back cover | 241 |

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