Erratum to: Fourier Series

The updated original online version for this chapter can be found at http://dx.doi.org/10.1007/978-3-319-43370-7_2

In Chapter 2 titled "Fourier Series", the equation in page 13 has been corrected to read as follows:

$\displaystyle\begin{array}{rcl} c_{n}& =& \frac{1} {2\pi }\biggl [\int _{0}^{\pi }\ \mbox{ (1)}e^{-inx}\,dx +\int _{ \pi }^{2\pi }(-1)e^{-inx}\,dx\biggl ] {}\\ \end{array}$