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The Number 55: Properties and Meanings

Prime Factors of 55=5x11.

55 can be Partitioned 28 times with each term no larger than 2.

55 can be Partitioned 280 times with each term no larger than 3.

55 can be Partitioned 1495 times with each term no larger than 4.

55 is a Fibonacci Number.

55 is a Triangular Number.

55 is a Heptagonal Number.

55 is a Centered Nonagonal Number.

55 is a Centered 18-gonal Number.

55 is a Square Pyramidal Number.

55 is the largest Triangular Number in the Fibonacci Sequence.

the sum of 5 successive Triangular Number (3+6+10+15+21 = 55)

Sum of the two series of following numbers: 1, 2, 4, 8 and 1, 3, 9, 27=55.

Sum of the first 5 Square Numbers = 1 + 4 + 9 + 16 + 25 = 55

Sum of the 8 factors of 36 = 1 + 2 + 3 + 4 + 6 + 9 + + 18 = 55

Caesium is a soft, silver-white, metallic element with atomic number 55. It is a very reactive element, exploding on contact with water and reacting instantly with air.

The Chemical Element Manganese has one Stable Isotope. It has 55 neutrons.

"The Ancient Chinese believed that "the sum total of heavenly numbers and earthly numbers is 55. It is this...which sets the gods and demons in movement."

The Year 55 AD

In the year 55 AD King Nicander II of Hellas died. He was succeeded by Pausanias III.

In the year 55 AD King Vologeses of Parthia was killed in battle against the Kushans. He was succeeded by his son, who reigns as King Mithridates III.

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Results for mathematics

Algebra - The Very Basics
by Metin BektasSearch for Metin Bektas

If you're looking for a gentle introduction to basic mathematics, look no further. This book picks you up at the very beginning and guides you through the foundations of algebra using lots of examples and no-nonsense explanations. Each chapter contains well-chosen exercises as well as all the solutions. No prior knowledge is required.

Topics include: Exponents, Brackets, Linear Equations and Quadratic Equations. For a more detailed table of contents, use the "Look Inside" feature. From the author of "Great Formulas Explained" and "Physics! In Quantities and Examples".

Those interested in delving into the exciting field of calculus and mathematical physics after attaining the very basics of algebra are invited to continue their journey with the "Math Shorts" series, starting with "Math Shorts - Exponential and Trigonometric Functions" and the free e-book "Math Shorts - Derivatives". Readers who prefer learning the basics of probability calculations can move on to the introductory text "Statistical Snacks".
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How Not to Be Wrong: The Power of Mathematical Thinking
by Jordan EllenbergSearch for Jordan Ellenberg
$8.80 new/used

The Freakonomics of math?a math-world superstar unveils the hidden beauty and logic of the world and puts its power in our hands

The math we learn in school can seem like a dull set of rules, laid down by the ancients and not to be questioned. In How Not to Be Wrong, Jordan Ellenberg shows us how terribly limiting this view is: Math isn?t confined to abstract incidents that never occur in real life, but rather touches everything we do?the whole world is shot through with it.

Math allows us to see the hidden structures underneath the messy and chaotic surface of our world. It?s a science of not being wrong, hammered out by centuries of hard work and argument. Armed with the tools of mathematics, we can see through to the true meaning of information we take for granted: How early should you get to the airport? What does ?public opinion? really represent? Why do tall parents have shorter children? Who really won Florida in 2000? And how likely are you, really, to develop cancer?

How Not to Be Wrong presents the surprising revelations behind all of these questions and many more, using the mathematician?s method of analyzing life and exposing the hard-won insights of the academic community to the layman?minus the jargon. Ellenberg chases mathematical threads through a vast range of time and space, from the everyday to the cosmic, encountering, among other things, baseball, Reaganomics, daring lottery schemes, Voltaire, the replicability crisis in psychology, Italian Renaissance painting, artificial languages, the development of non-Euclidean geometry, the coming obesity apocalypse, Antonin Scalia?s views on crime and punishment, the psychology of slime molds, what Facebook can and can?t figure out about you, and the existence of God.

Ellenberg pulls from history as well as from the latest theoretical developments to provide those not trained in math with the knowledge they need. Math, as Ellenberg says, is ?an atomic-powered prosthesis that you attach to your common sense, vastly multiplying its reach and strength.? With the tools of mathematics in hand, you can understand the world in a deeper, more meaningful way. How Not to Be Wrong will show you how.
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Mathematics for the Practical Man: Explaining Simply and Quickly All the Elements of Algebra, Geometry, Trigonometry, Logarithms, Coördinate Geometry, Calculus with Answers to Problems
by George HoweSearch for George Howe
$6.89 new/used

A review from The Sibley Journal of Engineering, Volume 30:

?Books for self-instruction are constantly being sought. In this book mathematics, from algebra through calculus, has been treated in such a manner as to be clear to anyone. Men who wish to study a part of mathematics which they have not hitherto had, engineers who wish to refer to phases of mathematics which so easily slip from the memory, students who desire a simple reference book, will find this manual just the book for which they have been looking.?
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Mathematics for the Nonmathematician (Dover Books on Mathematics)
by Morris KlineSearch for Morris Kline
$1.32 new/used

Practical, scientific, philosophical, and artistic problems have caused men to investigate mathematics. But there is one other motive which is as strong as any of these ? the search for beauty. Mathematics is an art, and as such affords the pleasures which all the arts afford." In this erudite, entertaining college-level text, Morris Kline, Professor Emeritus of Mathematics at New York University, provides the liberal arts student with a detailed treatment of mathematics in a cultural and historical context. The book can also act as a self-study vehicle for advanced high school students and laymen.
Professor Kline begins with an overview, tracing the development of mathematics to the ancient Greeks, and following its evolution through the Middle Ages and the Renaissance to the present day. Subsequent chapters focus on specific subject areas, such as "Logic and Mathematics," "Number: The Fundamental Concept," "Parametric Equations and Curvilinear Motion," "The Differential Calculus," and "The Theory of Probability." Each of these sections offers a step-by-step explanation of concepts and then tests the student's understanding with exercises and problems. At the same time, these concepts are linked to pure and applied science, engineering, philosophy, the social sciences or even the arts.
In one section, Professor Kline discusses non-Euclidean geometry, ranking it with evolution as one of the "two concepts which have most profoundly revolutionized our intellectual development since the nineteenth century." His lucid treatment of this difficult subject starts in the 1800s with the pioneering work of Gauss, Lobachevsky, Bolyai and Riemann, and moves forward to the theory of relativity, explaining the mathematical, scientific and philosophical aspects of this pivotal breakthrough. Mathematics for the Nonmathematician exemplifies Morris Kline's rare ability to simplify complex subjects for the nonspecialist.

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The Mathematics Devotional: Celebrating the Wisdom and Beauty of Mathematics
by Clifford A. PickoverSearch for Clifford A. Pickover
$11.95 new/used

?It is impossible to be a mathematician without being a poet in soul.? ?Sofia Kovalevskaya, Recollections of Childhood, 1895 
From the ingenious author of The Math Book and The Physics Book comes an inspirational volume that celebrates the beauty and wisdom of mathematics. Every page of this yearlong devotional presents a sage remark alongside a stunning image relating to the world of math. The quotes offer insight from such brilliant thinkers as Pythagoras, Richard Feynman, and Robert Heinlein, and the art showcases everything from gorgeous fractals to splendid architecture. The calendar also includes the birthdays of notable mathematicians, so readers can see which ones share theirs. A brief biographical dictionary provides additional information on the people whose wonderful words appeared through the book.

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The Foundations of Mathematics
by Ian Stewart, David Tall
$20.17 new/used

The transition from school mathematics to university mathematics is seldom straightforward. Students are faced with a disconnect between the algorithmic and informal attitude to mathematics at school, versus a new emphasis on proof, based on logic, and a more abstract development of general concepts, based on set theory.

The authors have many years' experience of the potential difficulties involved, through teaching first-year undergraduates and researching the ways in which students and mathematicians think. The book explains the motivation behind abstract foundational material based on students' experiences of school mathematics, and explicitly suggests ways students can make sense of formal ideas.

This second edition takes a significant step forward by not only making the transition from intuitive to formal methods, but also by reversing the process- using structure theorems to prove that formal systems have visual and symbolic interpretations that enhance mathematical thinking. This is exemplified by a new chapter on the theory of groups.

While the first edition extended counting to infinite cardinal numbers, the second also extends the real numbers rigorously to larger ordered fields. This links intuitive ideas in calculus to the formal epsilon-delta methods of analysis. The approach here is not the conventional one of 'nonstandard analysis', but a simpler, graphically based treatment which makes the notion of an infinitesimal natural and straightforward.

This allows a further vision of the wider world of mathematical thinking in which formal definitions and proof lead to amazing new ways of defining, proving, visualising and symbolising mathematics beyond previous expectations.
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Mathematics: A Complete Introduction (Teach Yourself)
by Hugh NeillSearch for Hugh Neill
$5.99 new/used

Maths does not have to be difficult. This book, complete with exercises and answers, forms a course which will take you from beginner or intermediate level to being a confident mathematician. This book includes simple step-by-step explanations, to help you grasp new topics or those that have previously confused you; practice questions throughout, to help you embed your learning and improve your confidence; End of chapter summaries, to help you remember the key points you've learned; All in one great-value book, so you don't need any separate workbooks or coursebooks.
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Mathematics: Its Content, Methods and Meaning (Dover Books on Mathematics)
by A. D. Aleksandrov, A. N. Kolmogorov, M. A. Lavrent?ev, Mathematics
$21.57 new/used

Hailed by The New York Times Book Review as "nothing less than a major contribution to the scientific culture of this world," this major survey features the work of 18 outstanding mathematicians. Primary subjects include analytic geometry, algebra, ordinary and partial differential equations, the calculus of variations, functions of a complex variable, prime numbers, and theories of probability and functions. Other topics include linear and non-Euclidean geometry, topology, functional analysis, more. 1963 edition.

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Great Formulas Explained - Physics, Mathematics, Economics
by Metin BektasSearch for Metin Bektas

In this book you will find some of the greatest and most useful formulas that the fields of physics, mathematics and economics have brought forth. Each formula is explained gently and in great detail, including a discussion of all the quantities involved and examples that will make clear how and where to apply it. On top of that, there are plenty of illustrations that support the explanations and make the reading experience even more vivid.

The book covers a wide range of topics: acoustics, explosions, hurricanes, pipe flow, car traffic, gravity, satellites, roller coasters, flight, conservation laws, trigonometry, equations, inflation, loans, and many more. From the author of "Statistical Snacks" and "Physics! In Quantities and Examples".

Volume II is now available under the title "More Great Formulas Explained".
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