List of Errors in Elementary Mathematical Models

Last Updated 11/6/13

This page lists the errors I know about in the Elementary Mathematical Models text. There has now been a second printing, so there is a separate error list for each. To tell which printing your book is, look at the very bottom of the back of the first page in the book.

I would appreciate being informed of errors that are not listed here. If you know of an error, please send it to me via email.

In the tables below, line designations are given relative to page tops or bottoms, or headings of sections. For example, "top +5" means 5 lines down from the top. Similarly, "An Example -4" indicates the fourth line preceding the section heading "An Example."

Errors in Second Printing
 
Page
Line Description
49
Top+16 Replace she with he.
61
Bottom-8 Replace .3n + 66 with .3n + 66.6
64
Figure 4.7 Change the labels on the y axis from 1, 3, 5, 7, 9 to 2, 3, 4, 5, 6 and change the labels on the x axis from -1, 1, 2, 3 to -2, 2, 4, 6. Also, move the x axis down 1.5 units.
83
Botttom -12
Change 44,000 and 59,000 to 42,500, and 53,000.   Also change 10,500 and 15,000 to 9,000 and 10,500
146
Problems in Context 3 +3 Replace 100,000 with 50,000.
158
Top+9 Replace (x - 5)  with  (x + 5).   
261
Figure 12.2 Replace drup with drug on the vertical scale legend. 
270
Bottom -3 Delete it from not it expect.
285
Bottom -8 Replace 7111.88 with 7111.89.
331
Figures 14.7 and 14.8 Horizontal scales on all graphs incorrectly labeled. They should all go from 0 to 50 (not 25).

 

Errors in First Printing
 
Page
Line Description
4
Figure 1.2+5 Replace 4004 with 400.
61
Bottom-8 Replace .3n + 66 with .3n + 66.6
64
Figure 4.7 Change the labels on the y axis from 1, 3, 5, 7, 9 to 2, 3, 4, 5, 6 and change the labels on the x axis from -1, 1, 2, 3 to -2, 2, 4, 6. Also, move the x axis down 1.5 units.
83
Botttom -12
Change 44,000 and 59,000 to 42,500, and 53,000.   Also change 10,500 and 15,000 to 9,000 and 10,500
115
Bottom -3, -4 Replace 78 with 76.
141
Problem 4+10 At the end of the line, replace 40-20=20 with 60-20=40. On the next line, change 20 to 40, change 80 to 100, and change 57 to 77.
146
Problems in Context +5 Inside the squareroot, change 700,328,931 to 697,670,093. On the next line, change 19.7863 to 19.8273.
212
Top +1 Change 300 to 230
227
Bottom -8 Change .683 to .693
231
Mathematical Skills 1 Insert a missing factor of 1000 following every equal sign in each part.
231
Mathematical Skills 2b Change .47712 to .95424 (twice) and change .23856 to .47712.
231
Mathematical Skills 2c Change 1.0986 to 2.1972 (twice) and change .5493 to 1.0986.
269
13 and 16 Change 1.0124 in numerator of fraction to 1.0124 - 1.
290
Figure 13.2  Labels on vertical axis are incorrect.
293
Bottom - 5 Change is the slope to is the negative of the slope.
317
1 Change 1.1 to 500 
317
2 Change .00010421 to .0473685 
317
3,6,7,10 Change 2.00010421 to 2.0473685 
317
9,12 Change 21112.176 to 21611.076 
317
12 Change 10557 to 11056