Nyquist Frequency
In order to recover all Fourier components of a periodic waveform, it is necessary to sample twiceas fast as the highest waveform frequency 
,
The minimum sampling frequency is called the Nyquist frequency.See also Fourier Series, Fourier Transform, Nyquist Sampling, Oversampling, Sampling Theorem
- Markov's Inequality
- Markov Spectrum
- Markov's Theorem
- Marriage Theorem
- Married Couples Problem
- Marshall-Edgeworth Index
- Martingale
- Mascheroni Constant
- Mascheroni Construction
- Maschke's Theorem
- Mason's abc Theorem
- Mason's Theorem
- Masser-Gramain Constant
- Match Problem
- Matchstick Graph
- Mathematical Induction
- Mathematics
- Mathematics Prizes
- Mathieu Differential Equation
- Mathieu Function
- Mathieu Groups
- Matrix
- Matrix Addition
- Matrix Decomposition Theorem
- Matrix Diagonalization