• Ch. 3 also includes more detail on linear vector spaces.  The discussion of basis function is continued in Ch. 7 (Fourier Series), Ch. 8 (Differential Equations), Ch. 12 (Series Solutions) , and Chapter 13 (Partial Differential Equations).

• Fourier integrals have been moved to Ch. 7 (Fourier Series).  The Laplace transform and an expanded treatment of the Dirac delta function have been moved to Ch. 8 (Differential Equations).

• Throughout the book, the usefulness and also the pitfall of computer algebra systems are pointed out.