Minus
(Built-in Mathematica Symbol) -x is the arithmetic negation of x.
MonsterGroupM[] represents the sporadic simple monster group M.
MultivariatePoissonDistribution[\[Mu]_0, {\[Mu]_1, \[Mu]_2, \ ...}] represents a multivariate Poisson distribution with mean vector {\[Mu]_0 + \[Mu]_1, \[Mu]_0 + \[Mu]_2, ...
NCache
(Built-in Mathematica Symbol) NCache[x, xn] represents a numeric cache object for a quantity with exact value x and approximate numerical value xn.
Negative[x] gives True if x is a negative number.
NonNegative[x] gives True if x is a non-negative number.
NonPositive[x] gives True if x is a non-positive number.
NotebookBrowseDirectory is a global option that determines the current working directory.
ObservableModelQ[ss] gives True if the StateSpaceModel object ss is observable, and False otherwise.
ONanGroupON[] represents the sporadic simple O'Nan group O' N.