Cross
(Built-in Mathematica Symbol) Cross[a, b] gives the vector cross product of a and b.
ExponentialFamily is an option for GeneralizedLinearModelFit that specifies the exponential family for the model.
JacobiP
(Built-in Mathematica Symbol) JacobiP[n, a, b, x] gives the Jacobi polynomial P_n^(a, b)(x).
LaguerreL[n, x] gives the Laguerre polynomial L_n (x). LaguerreL[n, a, x] gives the generalized Laguerre polynomial L_n^a(x).
ListDeconvolve[ker, list] gives a deconvolution of list using kernel ker.
MathMLForm[expr] prints as a MathML form of expr.
NHoldAll is an attribute which specifies that none of the arguments to a function should be affected by N.
PolynomialQuotient[p, q, x] gives the quotient of p and q, treated as polynomials in x, with any remainder dropped.
Projection[u, v] finds the projection of the vector u onto the vector v.Projection[u, v, f] finds projections with respect to the inner product function f.
Reap
(Built-in Mathematica Symbol) Reap[expr] gives the value of expr together with all expressions to which Sow has been applied during its evaluation. Expressions sown using Sow[e] or Sow[e, tag_i] with ...