What are the Errata in Thomas' Calculus 11th Edition?

[sponsoredwalk]

I can't find that example in the book, what section is it in? In any case yeah a (ghost) minus
sign is factored out in front & put back in in the end, if you tell me the section I can check if
my version also forgot the minus sign.

 

[Jimmy Snyder]

Page 297, section 4.4 Concavity and Curve Sketching, Example 8. I would appreciate confirmation. Even better would be if someone has the 12th edition to see if it is fixed.

 

[sponsoredwalk]

In my book they only go up to example 7 in that section, wonder why?

 

[Jimmy Snyder]

Here's another minor erratum. On page 306 in the solution to example 4, the 6th line on the page it refers to Figure 4.37. It should say Figure 4.39.

 

[Jimmy Snyder]

I note that on page 327 in the table in the middle of the page, that 'Number of correct digits' is used as a measure of accuracy. This is in an approximation to the value of \sqrt{2}.

 

[Jimmy Snyder]

Here is an obvious typo. On page 470 the first line of equations in the section entitled "The Differential Form", it has:

S = \int_{c}^{d}2\pi x\sqrt{(\frac{dx}{dy})^2} dy

it should be:

S = \int_{c}^{d}2\pi x\sqrt{1 + (\frac{dx}{dy})^2} dy

 

[Jimmy Snyder]

Here's a good one. On page 860 in the discussion of torque, he writes:

When we turn a bolt by applying a force F to a wrench (Figure 12.32), the torque we produce acts along the axis of the bolt to drive the bolt forward.

The figure shows the torque vector presumably driving the bolt forward as if it were a force and the bolt presumably moving forward because it is threaded in such a way as to make the author's words seem reasonable. However, if the bolt had been threaded the other way, I suppose the torque would drive the bolt backwards, a rather difficult thing to explain.