**NOTE: THIS DOCUMENT IS OBSOLETE, PLEASE CHECK THE NEW
VERSION:** "Mathematics of the Discrete
Fourier Transform (DFT), with Audio Applications --- Second
Edition", by Julius
O. Smith III, W3K
Publishing, 2007, ISBN 978-0-9745607-4-8. - Copyright ©
*2017-09-28* by Julius O. Smith III -
Center for Computer Research
in Music and Acoustics (CCRMA), Stanford University

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## Appendix C: Mathematica/Matlab Examples

Below is the Mathematica code for creating the aliasing example in Fig. 8.9.

aliasShow[freq, srate, options___] := SeqPlot[Sin[2 [Pi] freq t / srate], {t, 0, srate-1},options, Continuous->True]

a = aliasShow[1, 10]; b = aliasShow[-9, 10, PlotStyle->RGBColor[1,0,0]]; Show[a, b, AspectRatio->^{1}⁄_{3}];