MakeExpression[boxes, form] is the low-level function used in Mathematica sessions to construct expressions from boxes.
MantissaExponent[x] gives a list containing the mantissa and exponent of a number x. MantissaExponent[x, b] gives the base-b mantissa and exponent of x.
MarcumQ
(Built-in Mathematica Symbol) MarcumQ[m, a, b] gives Marcum's Q function Q_m (a, b).MarcumQ[m, a, b_0, b_1] gives Marcum's Q function Q_m (a, b_0) - Q_m (a, b_1).
MardiaKurtosisTest[data] tests whether data follows a MultinormalDistribution using the Mardia kurtosis test.MardiaKurtosisTest[data, " property"] returns the value of " ...
MeanDeviation[list] gives the mean absolute deviation from the mean of the elements in list.
MedianDeviation[list] gives the median absolute deviation from the median of the elements in list.
MexicanHatWavelet[] represents the Mexican hat wavelet of width 1.MexicanHatWavelet[\[Sigma]] represents the Mexican hat wavelet of width \[Sigma].
MinimalPolynomial[s, x] gives the minimal polynomial in x for which the algebraic number s is a root.
MinimalStateSpaceModel[ss] gives the minimal state-space model of the StateSpaceModel object ss.
MoebiusMu[n] gives the Möbius function \[Mu](n).