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# 50 Mathematical Ideas You Really Need to Know (50 Ideas You Really Need to Know )

by
Tony Crilly

Who invented zero? Why are there 60 seconds in a minute? Can a butterfly's wings really cause a storm on the far side of the world? In 50 concise essays, Professor Tony Crilly explains the mathematical concepts that allow use to understand and shape the world around us.

Hardcover, 208 pages

Published
May 1st 2008
by Quercus
(first published 2007)

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## Community Reviews

(showing 1-30)

Each Idea is exactly four pages long, so they are given equal stature and rank. Some are more obvious than others. Some Ideas are easy, some incredibly advanced. I enjoyed the time line for each Idea.

I ...more

Even worse is the fact that these broad introductions to complex ideas contain multiple small, but drastic, errors. This book would be fine for a complete math novice who has no intention of ever using these concepts or th ...more

Uzzināju dažus interesantus vēstures faktus un to, ka matemātiķi esot sasodīti dīvaini radījumi, jo viņi ...more

QED has been replaced with a solid square - how disappointing!

Many of the other ideas I had already come across but I did find them well explained and I liked the style - neither too heavy nor too trivial.

I picked this one for the cover for Summer09 Challenge 30.09 but I thoroughly enjoyed it.

It contains 50 topics of general interest, and each topic can be read by itself. There is no need to read the book from cover to cover, so it is a great coffee book, or for breakfast reading, etc.

Each topic is explained in an easy and relaxed way, requiring no prior mathematical knowledge, which makes it easy to grasp.

Anyone with the slightest interest in mathematics would enjoy this book.

**RECOMMEND TO ALL MATHS RELATED STUDENTS & TEACHERS**

Having problems in solving that mathematical formula? Do you feel the need to revise your mathematical equations again? Do you face problems with remembering definitions & find no way to look for? Are you tired of mixing all the theories together?

Worry no more.. because

*Tony Crilly*has brought a basic maths book which teaches you the concepts of mathematical problems, ranging from the simplest fractions to the most complicated length ...more

nice excursion to the math universe, quite refreshing. some typos and minor mistakes are there, though not critical.

из моего ФБ периода перевода:

в свете новых законодательных инициатив, кажется, книгу, которую я сейчас перевожу, оклеят с головы до пят бирками 18+: в ней есть, обожемой, _задача Тома ...more

As the title indicates, there are 50 ideas, most of the chapters dedicate 2 pages to each topic, sometimes 4, but there is never any lingering around on an ...more

A good way to pass the time during a sit down and become acquainted w/ some tools that you've likely not heard of before. However, some of the descriptions are bit confused, or juvenile, which is likely driven by format and intended audience. Too, each section closes w/ some one-liner quip, often t ...more

Obsahuje spoustu zajímavostí, časové osy a náčrtky, což potěší srdce každého příznivce matematiky. :)

If you need some refreshing of school-math and want to learn a bit new this might be a good read.

This book goes hand in hand with the YouTube channel, Numberphile; if you enjoy one, you must enjoy the other.

What really brings the book down are its numerous typos in the mathematical deductions, which defeats the purpose of having them in the first place (although the approach deserves some recognition, since many popular science books just 'tell' instead of 'showing').

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