ASN2 - Something Interesting: Exponential

Fourier Series

Using cosine to represent the basis functions $x(t)=\sum _{n=0}^{\infty }a_{n}cos({\frac {2\pi mt}{T}})\!$

Using an exponential to represent basis functions $x(t)=\sum _{n=0}^{\infty }a_{n}e^{(}{\frac {j2\pi mt}{T}})\!$