Author(s): William E. Boyce, Richard C. DiPrimaDifference between 10th and 9th editions Side by side comparison of table of contents helps to figure out the most significant changes. |

**Key differences between 10th and 9th editions**

- Period between current and previous editions: 4 years (2012 vs 2008).
- General structure of Boyce & DiPrima's textbook remains unchanged in the Tenth Ed.
- The most important changes include the following:
- 20 new problems and several new historical footnotes.
- The statement that the real and imaginary parts of a complex solution of a real problem are also solutions is presented as a theorem in Sections 3.2 and 7.4.
- Derivations and proofs in several chapters have been expanded or refreshed.
- Sections 2.1, 3.8, and 7.5 has new examples.
- Section 7.8 goes into more detail of repeated eigenvalues and includes more problems.
- Sections 8.5 "Systems of First Order Equations" and 8.6 "More on Errors; Stability" have been interchanged.
**Chapter 11**is now entitled as "Boundary Value Problems and Sturm-Liouville Theory"

Elementary Differential Equations and Boundary Value Problems

Published by: Wiley, October 02, 2012

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Binder Ready Version

**Loose Leaf**, 832 pages

Published by: Wiley, October 02, 2012

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Elementary Differential Equations and Boundary Value Problems

Published by: Wiley, October 27, 2008

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$93.95 |
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Elementary Differential Equations and Boundary Value Problems

Published by: Wiley, April 20, 2004

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$39.31 |
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**Saving advice**

- Used 10th edition can save you
**$148.43**over the new one. -
Used previous 9th edition costs
**$91.41**less than the used 10th.