CholeskyDecomposition[m] gives the Cholesky decomposition of a matrix m.
Cyclotomic[n, x] gives the n\[Null]^th cyclotomic polynomial in x.
DSolve
(Built-in Mathematica Symbol) DSolve[eqn, y, x] solves a differential equation for the function y, with independent variable x. DSolve[{eqn_1, eqn_2, ...}, {y_1, y_2, ...}, x] solves a list of ...
FractionalPart[x] gives the fractional part of x.
HermiteH[n, x] gives the Hermite polynomial H_n (x).
InverseEllipticNomeQ[q] gives the parameter m corresponding to the nome q in an elliptic function.
LandauDistribution[\[Mu], \[Sigma]] represents a Landau distribution with location parameter \[Mu] and scale parameter \[Sigma].
LaplaceTransform[expr, t, s] gives the Laplace transform of expr. LaplaceTransform[expr, {t_1, t_2, ...}, {s_1, s_2, ...}] gives the multidimensional Laplace transform of ...
MarginalDistribution[dist, k] represents a univariate marginal distribution of the k\[Null]^th coordinate from the multivariate distribution dist.MarginalDistribution[dist, ...
NumericQ[expr] gives True if expr is a numeric quantity, and False otherwise.