About textbook

[Victor Ivrii]

The most popular textbook (which was used in this course for years) is
W. E. Boyce and R. C. DiPrima, Elementary Differential Equations and Boundary Value Problems or its version without last chapters (which were not covered anyway) Elementary Differential Equations.

For the last few years the 10th edition was used. However, we were advised that it is out of the print and bookstores have only leftover.

Meanwhile, the newer edition
https://www.wiley.com/en-ca/Elementary+Differential+Equations+and+Boundary+Value+Problems%2C+Enhanced+eText%2C+11th+Edition-p-9781119381648 William E. Boyce, Richard C. DiPrima, Douglas B. Meade, Elementary Differential Equations and Boundary Value Problems, Enhanced eText, 11th Edition
is available only in electronic format as ebook. The cost is CAD 96 (and its shorter version costs the same).

It also available on "Wiley+plus" but at the moment neither price, nor advantages of this "plus" edition are clear to me. However, I am in contact with Wiley's representative and hopefully soon these issues will be clarified. Until then please do not buy ebook. I will post Home assignments online until the dust settles (at least  for weeks 1--2).

[Victor Ivrii]

I received response from Wiley+ and decided that since it is more pricey than ebook (CAD 120) not to go with it. May be the Wiley+ is worth it, but to take an advantage of it one needs a serious preparation, and there is no time for it now.

So, please buy ebook.


If you have 10th edition, you can use it for a text reading. The bottleneck are problems. Normally home assignments will be given as "solve problems #5, 7, 13 ... on pages 76--32" meaning 11th edition. Most of the problems of 11th edition could be found in 10th edition (at least in the first Chapters there are less problems in 11th than in 10th).

As long as I have time to post problems online as I did for weeks 1––2 (it is time consuming, trust me), or someone does it on Forum, or posts matching numbers from 10th edition (on Forum), it will be fine. How long it will work, depends on those in the class, who have both editions and are willing to do this.
So far, problems for Week 3 posted.