In order to recover all Fourier components of a periodic waveform, it is necessary to use a sampling rate at least twice the highest waveform frequency. The Nyquist frequency, also called the Nyquist limit, is the highest frequency that can be coded at a given sampling rate in order to be able to fully reconstruct the signal, i.e.,
See alsoFourier Series, Fourier Transform, Nyquist Sampling, Oversampling, Sampling Theorem
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ReferencesArndt, J. Algorithms for Programmers: Ideas and Source Code. In preparation. http://www.jjj.de/fxt/fxtpage.html#fxtbook.Oppenheim, A. V.; Schafer, R. W.; and Buck, J. R. Discrete-Time Signal Processing, 2nd ed. Englewood Cliffs, NJ: Prentice-Hall, 1999.
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Weisstein, Eric W. "Nyquist Frequency." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/NyquistFrequency.html