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Maths on the Back of an Envelope

Clever ways to (roughly) calculate anything

af Rob Eastaway ...

‘Another terrific book by Rob Eastaway’ SIMON SINGH‘A delightfully accessible guide to how to play with numbers’ HANNAH FRYHow many cats are there in the world?What's the chance of winning the lottery twice?And just how long does it take to count to a million?Learn how to tackle tricky maths problems with nothing but the back of an envelope, a pencil and some good old-fashioned brain power.Join ... Læs mere

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‘Another terrific book by Rob Eastaway’ SIMON SINGH‘A delightfully accessible guide to how to play with numbers’ HANNAH FRYHow many cats are there in the world?What's the chance of winning the lottery twice?And just how long does it take to count to a million?Learn how to tackle tricky maths problems with nothing but the back of an envelope, a pencil and some good old-fashioned brain power.Join
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How to Make the World Add Up

Ten Rules for Thinking Differently About Numbers

af Tim Harford ...

The Sunday Times Bestseller'Tim Harford is one of my favourite writers in the world. His storytelling is gripping but never overdone, his intellectual honesty is rare and inspiring, and his ability to make complex things simple - but not simplistic - is exceptional. How to Make the World Add Up is another one of his gems. If you're looking for an addictive pageturner that will make you smarter, ... Læs mere

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Mathematics Done Quick: 2635 Exercises in Mental Calculation and Arithmetic

Life Made Easier through Mathematics, #4

af Zinet William ...

Serier Bog 4 - Life Made Easier through Mathematics
Mathematics underpins all the trappings of modern day life.It is very hard to go a day without using it; even a trip to the grocery store usually entails usage of quick mental calculation skills.This book has a large number of puzzles that deal with dividing and multiplying by powers of 10 and multiples of 5 and 2; these are the main sum types that lend themselves to shortcuts in calculation.Get ... Læs mere

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Mathematics underpins all the trappings of modern day life.It is very hard to go a day without using it; even a trip to the grocery store usually entails usage of quick mental calculation skills.This book has a large number of puzzles that deal with dividing and multiplying by powers of 10 and multiples of 5 and 2; these are the main sum types that lend themselves to shortcuts in calculation.Get
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Non-diophantine Arithmetics In Mathematics, Physics And Psychology

af Mark Burgin, Marek Czachor ...

For a long time, all thought there was only one geometry — Euclidean geometry. Nevertheless, in the 19th century, many non-Euclidean geometries were discovered. It took almost two millennia to do this. This was the major mathematical discovery and advancement of the 19th century, which changed understanding of mathematics and the work of mathematicians providing innovative insights and tools for ... Læs mere

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For a long time, all thought there was only one geometry — Euclidean geometry. Nevertheless, in the 19th century, many non-Euclidean geometries were discovered. It took almost two millennia to do this. This was the major mathematical discovery and advancement of the 19th century, which changed understanding of mathematics and the work of mathematicians providing innovative insights and tools for
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Short Cuts In Figures

Amazing Rapid calculation techniques, tables and formulas

af A. Frederick Collins ...

A WORD TO YOU Figuring is the key-note of all business. To know how to figure quickly and accurately is to jack-up the power of your mind, and hence your efficiency, and the purpose of this book is to tell you how to do it. Anyone who can do ordinary arithmetic can easily master the simple methods I have given to figure the right way as well as to use short cuts, and these when taken together are ... Læs mere

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A WORD TO YOU Figuring is the key-note of all business. To know how to figure quickly and accurately is to jack-up the power of your mind, and hence your efficiency, and the purpose of this book is to tell you how to do it. Anyone who can do ordinary arithmetic can easily master the simple methods I have given to figure the right way as well as to use short cuts, and these when taken together are
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Mathematical Olympiad in China (20212022)

Problems and Solutions

af Bin Xiong ...

Serier Bog 22 - Mathematical Olympiad Series
In China, many excellent students in mathematics take an active part in various mathematical contests, and each year, the best six senior high school students are selected to form the IMO National Team to compete in the International Mathematical Olympiad. In the past ten years, China's IMO Team has achieved outstanding results — they won first place almost every year.The authors of this book are ... Læs mere

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In China, many excellent students in mathematics take an active part in various mathematical contests, and each year, the best six senior high school students are selected to form the IMO National Team to compete in the International Mathematical Olympiad. In the past ten years, China's IMO Team has achieved outstanding results — they won first place almost every year.The authors of this book are
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Le nombre 1 dans l'imaginaire

Les Mathématiques et le réel

af Komla AKO ...

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af Tracey Pilone, Dan Pilone ...

Having trouble understanding algebra? Do algebraic concepts, equations, and logic just make your head spin? We have great news: Head First Algebra is designed for you. Full of engaging stories and practical, real-world explanations, this book will help you learn everything from natural numbers and exponents to solving systems of equations and graphing polynomials.Along the way, you'll go beyond ... Læs mere

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af Alander Lee Pulliam Jr, Olom "Nosa" Okonta ...

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In a world where technology accelerates faster than ever, the landscape of investing is undergoing a revolutionary transformation. Navigating Modern Investment is your comprehensive guide to understanding how artificial intelligence is reshaping finance—and how you, as a new investor, can harness its power to build wealth smarter and faster.Written in an engaging, accessible style, this book
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Catalan's Constant [Ramanujan's Formula]

af Greg Fee ...

Catalan constant to 300000 digits computed on September 29, 1996 by using a Sun Ultra-Sparc in 1 day 8 hour 15 min 15 sec 55 hsec. The algorithm used is the standard series for Catalan, accelerated by an Euler transform. The algorithm was implemented using the LiDIA library for computational number theory and it is part of the multiprecision floating-point arithmetic of the package. ... Læs mere

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Catalan constant to 300000 digits computed on September 29, 1996 by using a Sun Ultra-Sparc in 1 day 8 hour 15 min 15 sec 55 hsec. The algorithm used is the standard series for Catalan, accelerated by an Euler transform. The algorithm was implemented using the LiDIA library for computational number theory and it is part of the multiprecision floating-point arithmetic of the package.
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af Cheng De Hua ...

This book features the arithmetic perspective of the algebraic expression ax2+bx+c . It is intended for students with a basic understanding of Arithmetics, namely just the operations of Addition, Subtraction and Multiplication. It is a great guide for students who would like to have an overview of what ax2+bx+c is about from the perspective of Arithmetics. Easily read and brief in scope with only ... Læs mere

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This book features the arithmetic perspective of the algebraic expression ax2+bx+c . It is intended for students with a basic understanding of Arithmetics, namely just the operations of Addition, Subtraction and Multiplication. It is a great guide for students who would like to have an overview of what ax2+bx+c is about from the perspective of Arithmetics. Easily read and brief in scope with only
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Elements of arithmetic

af Augustus De Morgan ...

Imagine a multitude of objects of the same kind assembled together; for example, a company of horsemen. One of the first things that must strike a spectator, although unused to counting, is, that to each man there is a horse. Now, though men and horses are things perfectly unlike, yet, because there is one of the first kind to every one of the second, one man to every horse, a new notion will be ... Læs mere

26,75 kr. eller Gratis med Kobo Plus

Imagine a multitude of objects of the same kind assembled together; for example, a company of horsemen. One of the first things that must strike a spectator, although unused to counting, is, that to each man there is a horse. Now, though men and horses are things perfectly unlike, yet, because there is one of the first kind to every one of the second, one man to every horse, a new notion will be
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魔法算術！奇妙的印度數學

風靡全球的超強速解法，化繁為簡，運算速度提升10倍，增強解題力、邏輯力和創造力

Redigeret af 智力開發編輯部 ...

Serier Bog 1 - 益智玩家
★風靡全球，簡單有趣，掌握基本運算過程即可無限延神，迅速破題求正解★化繁為簡，每天10分鐘，運算速度提升10倍，強化大腦靈活性，學會永不忘★0～99歲都能學的「頭腦瑜伽」，打破既定思維，同步提升邏輯力、創造力化繁為簡，翻轉運算過程，比計算機更簡便、比心算更強大的神奇速解法免背公式，3秒求解，快速、正確，一看就會，從玩中練出數學金頭腦本書解讀印度數學的精髓和運算過程，打破以往演算的定向思維，免背公式，快速提升邏輯推演能力。印度數學中獨特的逆向演算法、補數演算法等計算過程，能夠讓學習者跳出慣性思考，培養跳躍式的解題路徑，直達問題核心，做到「一看算式，立知答案」的數學直覺。◆你能在3秒內算... ... Læs mere

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★風靡全球，簡單有趣，掌握基本運算過程即可無限延神，迅速破題求正解★化繁為簡，每天10分鐘，運算速度提升10倍，強化大腦靈活性，學會永不忘★0～99歲都能學的「頭腦瑜伽」，打破既定思維，同步提升邏輯力、創造力化繁為簡，翻轉運算過程，比計算機更簡便、比心算更強大的神奇速解法免背公式，3秒求解，快速、正確，一看就會，從玩中練出數學金頭腦本書解讀印度數學的精髓和運算過程，打破以往演算的定向思維，免背公式，快速提升邏輯推演能力。印度數學中獨特的逆向演算法、補數演算法等計算過程，能夠讓學習者跳出慣性思考，培養跳躍式的解題路徑，直達問題核心，做到「一看算式，立知答案」的數學直覺。◆你能在3秒內算...
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How Math Works

A Guide to Grade School Arithmetic for Parents and Teachers

af G. Arnell Williams ...

We hear all the time how American children are falling behind their global peers in various basic subjects, but particularly in math. Is it our fear of math that constrains us? Or our inability to understand math’s place in relation to our everyday lives? How can we help our children better understand the basics of arithmetic if we’re not really sure we understand them ourselves?Here, G. Arnell ... Læs mere

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We hear all the time how American children are falling behind their global peers in various basic subjects, but particularly in math. Is it our fear of math that constrains us? Or our inability to understand math’s place in relation to our everyday lives? How can we help our children better understand the basics of arithmetic if we’re not really sure we understand them ourselves?Here, G. Arnell
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Análisis de Fourier.

Teoría y aplicaciones

af José Humberto Serrano Devia ...

Serier serie Espacios
Este documento busca proporcionar los métodos de Fourier básicos, útiles en aplicaciones de ingeniería, como los referidos a los procesamientos de señales, comunicaciones, control y otros más. Se trata de un libro enfocado a estudiantes de ingeniería, profesores y estudiosos de este tema. Espero que contribuya a fortalecer los conceptos y aplicaciones del análisis de Fourier, primero en forma ... Læs mere

Før 42,00 kr. Nu 29,00 kr. eller Gratis med Kobo Plus

Este documento busca proporcionar los métodos de Fourier básicos, útiles en aplicaciones de ingeniería, como los referidos a los procesamientos de señales, comunicaciones, control y otros más. Se trata de un libro enfocado a estudiantes de ingeniería, profesores y estudiosos de este tema. Espero que contribuya a fortalecer los conceptos y aplicaciones del análisis de Fourier, primero en forma
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The Eleven-Plus Book

Genuine Exam Questions From Yesteryear

af Michael O'Mara Books ...

Is the nation really dumbing down? Are exams really easier than they were in the good old days? Now's the chance to find out whether age really does equal wisdom with The Eleven-Plus Book, a real way to contrast the schooling of yesteryear with modern-day practices and settle the recent debates. Every generation can attempt questions on a number of subjects from English and arithmetic to general ... Læs mere

Før 21,55 kr. Nu 18,96 kr.

Is the nation really dumbing down? Are exams really easier than they were in the good old days? Now's the chance to find out whether age really does equal wisdom with The Eleven-Plus Book, a real way to contrast the schooling of yesteryear with modern-day practices and settle the recent debates. Every generation can attempt questions on a number of subjects from English and arithmetic to general
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How Did You Count?

Picture Book

af Christopher Danielson ...

Winner of the 2026 Mathical Book Prize!From the author of the award-winning Which One Doesn’t Belong? and How Many? comes How Did You Count?, the latest title in Christopher Danielson’s collection that is sure to spark conversation, questioning and wondering amongst both younger and older students alike.This listing is for a hard cover copy of the children's picture book. There is also a <a href= ... Læs mere

267,42 kr.

Winner of the 2026 Mathical Book Prize!From the author of the award-winning Which One Doesn’t Belong? and How Many? comes How Did You Count?, the latest title in Christopher Danielson’s collection that is sure to spark conversation, questioning and wondering amongst both younger and older students alike.This listing is for a hard cover copy of the children's picture book. There is also a <a href=
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Exploring Blockchain Applications

Management Perspectives

Redigeret af Sezer Bozkus Kahyaoglu, Vahap Tecim ...

In this book, the development process of blockchain algorithms and examples of their applications in different sectors are explored. The opportunities and challenges of blockchain implementations that arise in making technological innovations usable in corporate structures are discussed. In this respect, the book aims to deal with both the conceptual framework and the real challenges and ... Læs mere

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In this book, the development process of blockchain algorithms and examples of their applications in different sectors are explored. The opportunities and challenges of blockchain implementations that arise in making technological innovations usable in corporate structures are discussed. In this respect, the book aims to deal with both the conceptual framework and the real challenges and
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Mining Complex Networks

af Bogumił Kamiński, Paweł Prałat, François Théberge ...

Serier serie Advances in Applied Mathematics
This book concentrates on mining networks, a subfield within data science. Many data science problems can be viewed as a study of some properties of complex networks in which nodes represent the entities that are being investigated, and edges represent relations between these entities.In these networks (for example, the Instagram and Facebook online social networks), nodes not only contain some ... Læs mere

706,15 kr.

This book concentrates on mining networks, a subfield within data science. Many data science problems can be viewed as a study of some properties of complex networks in which nodes represent the entities that are being investigated, and edges represent relations between these entities.In these networks (for example, the Instagram and Facebook online social networks), nodes not only contain some
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Functional Linear Algebra

af Hannah Robbins ...

Serier serie Textbooks in Mathematics
Linear algebra is an extremely versatile and useful subject. It rewards those who study it with powerful computational tools, lessons about how mathematical theory is built, examples for later study in other classes, and much more.Functional Linear Algebra is a unique text written to address the need for a one-term linear algebra course where students have taken only calculus. It does not assume ... Læs mere

674,05 kr.

Linear algebra is an extremely versatile and useful subject. It rewards those who study it with powerful computational tools, lessons about how mathematical theory is built, examples for later study in other classes, and much more.Functional Linear Algebra is a unique text written to address the need for a one-term linear algebra course where students have taken only calculus. It does not assume
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Multi-Criteria Decision Making Theory and Applications in Sustainable Healthcare

af Mohamed Abdel-Basset, Ripon Kumar Chakrabortty, Abduallah Gamal ...

Multi-Criteria Decision Making Theory and Applications in Sustainable Healthcare, 1st Edition, is an excellent compilation of current and advanced Multi-Criteria Decision Making (MCDM) techniques and their applications to multiple recent and innovative healthcare analytics problems. The healthcare business has expanded rapidly in recent years, and one of the top priorities in the sector is now the ... Læs mere

599,14 kr.

Multi-Criteria Decision Making Theory and Applications in Sustainable Healthcare, 1st Edition, is an excellent compilation of current and advanced Multi-Criteria Decision Making (MCDM) techniques and their applications to multiple recent and innovative healthcare analytics problems. The healthcare business has expanded rapidly in recent years, and one of the top priorities in the sector is now the
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Frege, Dedekind, and Peano on the Foundations of Arithmetic (Routledge Revivals)

af Donald Gillies ...

Serier serie Routledge Revivals
First published in 1982, this reissue contains a critical exposition of the views of Frege, Dedekind and Peano on the foundations of arithmetic. The last quarter of the 19th century witnessed a remarkable growth of interest in the foundations of arithmetic. This work analyses both the reasons for this growth of interest within both mathematics and philosophy and the ways in which this study of the ... Læs mere

663,35 kr.

First published in 1982, this reissue contains a critical exposition of the views of Frege, Dedekind and Peano on the foundations of arithmetic. The last quarter of the 19th century witnessed a remarkable growth of interest in the foundations of arithmetic. This work analyses both the reasons for this growth of interest within both mathematics and philosophy and the ways in which this study of the
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Spectral and Scattering Theory for Second Order Partial Differential Operators

af Kiyoshi Mochizuki ...

Serier serie Chapman & Hall/CRC Monographs and Research Notes in Mathematics
The book is intended for students of graduate and postgraduate level, researchers in mathematical sciences as well as those who want to apply the spectral theory of second order differential operators in exterior domains to their own field. In the first half of this book, the classical results of spectral and scattering theory: the selfadjointness, essential spectrum, absolute continuity of the ... Læs mere

1.893,95 kr.

The book is intended for students of graduate and postgraduate level, researchers in mathematical sciences as well as those who want to apply the spectral theory of second order differential operators in exterior domains to their own field. In the first half of this book, the classical results of spectral and scattering theory: the selfadjointness, essential spectrum, absolute continuity of the
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Metaheuristic Computation with MATLAB®

af Erik Cuevas, Alma Rodriguez ...

Metaheuristic algorithms are considered as generic optimization tools that can solve very complex problems characterized by having very large search spaces. Metaheuristic methods reduce the effective size of the search space through the use of effective search strategies.Book Features:Provides a unified view of the most popular metaheuristic methods currently in useIncludes the necessary concepts ... Læs mere

556,34 kr.

Metaheuristic algorithms are considered as generic optimization tools that can solve very complex problems characterized by having very large search spaces. Metaheuristic methods reduce the effective size of the search space through the use of effective search strategies.Book Features:Provides a unified view of the most popular metaheuristic methods currently in useIncludes the necessary concepts
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Anbefalet til dig

Aritmetik e-bøger

Maths on the Back of an Envelope

How to Make the World Add Up

Mathematics Done Quick: 2635 Exercises in Mental Calculation and Arithmetic

Non-diophantine Arithmetics In Mathematics, Physics And Psychology

Short Cuts In Figures

Mathematical Olympiad in China (20212022)

Le nombre 1 dans l'imaginaire

Head First Algebra

The AI Investor

Catalan's Constant [Ramanujan's Formula]

The Arithmetics of ax2+bx+c . Pre-Algebra Course.

Elements of arithmetic

魔法算術！奇妙的印度數學

How Math Works

Análisis de Fourier.

The Eleven-Plus Book

How Did You Count?

Exploring Blockchain Applications

Mining Complex Networks

Functional Linear Algebra

Multi-Criteria Decision Making Theory and Applications in Sustainable Healthcare

Frege, Dedekind, and Peano on the Foundations of Arithmetic (Routledge Revivals)

Spectral and Scattering Theory for Second Order Partial Differential Operators

Metaheuristic Computation with MATLAB®