Chapter 3
[3:1] Programming in Scala 3rd edition §21.6 Context bounds, M. Odersky, L. Spoon, B. Venners - Artima 2016
[3:2] Moving Averages, Wikipedia, the free encyclopedia Wikimedia Foundation - http://en.wikipedia.org/wiki/Moving_average_model
[3:3] Forecasting with weighted moving averages P. Kumar, Kushmanda Manpower 2011
[3:4] Practical Guide to Data Smoothing & Filtering, T. Van Den Bogert - 1996 -http://isbweb.org/software/sigproc/bogert/filter.pdf
[3:5] Spectral density estimation, Wikipedia, the free encyclopedia Wikimedia Foundation - http://en.wikipedia.org/wiki/Spectral_estimation
[3:6] The Fast Fourier Transform and Its Applications E O. Brigham - Prentice-Hall 1988
[3:7] Fourier Transform Tutorial: Learn difficult engineering concepts through interactive flash programs - http://www.fourier-series.com/f-transform/
[3:8] The Cooley-Tukey Fast Fourier Transform Algorithm, C. S. Burrus OpenStax -http://cnx.org/content/m16334/latest/
[3:9] Apache Commons Math 3.3 API, Apache...