A First Course in Harmonic Analysis (Universitext)
Publisher: Springer
Published: March 9, 2005
Language: eng
Number of pages: 204
ISBN-13: 9780387228372
First sentence: The theory of Fourier series is concerned with the question of whether a given periodic function, such as the plot of a heartbeat or the signal of a radio pulsar, can be written as a sum of simple waves.