Dzerzhinsky. Love and revolution

A modern educated person does not need to prove how important mathematics is. After all, it is not only interesting in theory, but, obviously, useful in everyday life. The hobby of researchers with this science led to the emergence of countless brilliant ideas. Flying the pages of this book, you will remember that the usual numbers can be remarkable and irrational, get acquainted with Hamilton quaternions closer and evaluate the grace of conical sections of Apollonia... And mathematical paradoxes, such as the famous walk on seven Königsberg bridges or the search for the second side of the Mobius tape , will cheer you up. The mathematical ideas presented in this edition are retold in a simple language, accessible to the widest circle of readers, which means they will not leave indifferent all connoisseurs of this beautiful science.