# Calculus for the Practical Man (2nd Edition) by James Edgar Thompson

By James Edgar Thompson

This is often the quantity on calculus from the 'Mathematics for self-study' sequence by means of J E Thompson. It was once initially released in 1931.

Best mathematics books

Calculus for the Practical Man (2nd Edition)

This is often the quantity on calculus from the 'Mathematics for self-study' sequence through J E Thompson. It was once initially released in 1931.

Selected papers of P.D. Lax

A popular mathematician who considers himself either utilized and theoretical in his technique, Peter Lax has spent so much of his specialist profession at NYU, making major contributions to either arithmetic and computing. He has written numerous very important released works and has got a variety of honors together with the nationwide Medal of technological know-how, the Lester R.

Discrete Mathematics in Statistical Physics: Introductory Lectures

The publication first describes connections among a few uncomplicated difficulties and technics of combinatorics and statistical physics. The discrete arithmetic and physics terminology are concerning one another. utilizing the demonstrated connections, a few interesting actions in a single box are proven from a point of view of the opposite box.

Additional resources for Calculus for the Practical Man (2nd Edition)

Example text

Mathematicians consider two knots to be ‘the same’ – the jargon is topologically equivalent – if one can be continuously transformed into the other. ‘Continuously’ means you have to keep the string in one piece – no cutting – and it can’t pass through itself. Knot theory becomes interesting when you discover that a really complicated knot, such as Haken’s Gordian knot, is in fact just the unknot in disguise. Haken’s Gordian knot. The trefoil knot is genuine – it can’t be unknotted. The first proof of this apparently obvious fact was found in the 1920s.

Answer on page 260 * Strictly speaking, ‘dice’ is the plural, and I should have used ‘die’ – but I’ve given up fighting that particular battle. I mention this to stop people writing in to tell me I’ve got it wrong. Anyway, the proverb tells us ‘never say die’. Why Does Minus Times Minus Make Plus? // 37 An Age-Old Old-Age Problem The Emperor Scrumptius was born in 35 BC, and died on his birthday in AD 35. What was his age when he died? Answer on page 262 Why Does Minus Times Minus Make Plus? When we first meet negative numbers, we are told that multiplying two negative numbers together makes a positive number, so that, for example, ðÀ2Þ6ðÀ3Þ ¼ þ6.

Try it with other three-digit numbers – you’ll find that exactly the same trick works. Now, mathematics isn’t just about noticing curious things – it’s also important to find out why they happen. Here we can do that by reversing the entire calculation. The reverse of division is multiplication, so – as you can check – the reverse procedure starts with the three-digit result 471, and gives 471613 ¼ 6;123 6;123611 ¼ 67;353 67;35367 ¼ 471;471 Not terribly helpful as it stands . . but what this is telling us is that 47161361167 ¼ 471;471 So it could be a good idea to see what 1361167 is.