Divisors[n] gives a list of the integers that divide n.
EulerGamma is Euler's constant \[Gamma], with numerical value \[TildeEqual] 0.577216.
HypergeometricPFQRegularized[{a_1, ..., a_p}, {b_1, ..., b_q}, z] is the regularized generalized hypergeometric function \[Null]_p F_q (a; b; z)/(\[CapitalGamma](b_1) ... ...
O
(Built-in Mathematica Symbol) O[x]^n represents a term of order x^n. O[x]^n is generated to represent omitted higher-order terms in power series. O[x, x_0]^n represents a term of order (x - x_0) n.
StringMatchQ["string", patt] tests whether " string" matches the string pattern patt. StringMatchQ["string", RegularExpression["regex"]] tests whether " string" matches the ...
VectorQ
(Built-in Mathematica Symbol) VectorQ[expr] gives True if expr is a list or a one-dimensional SparseArray object, none of whose elements are themselves lists, and gives False otherwise. VectorQ[expr, ...
Elementary transcendental functions. Mathematica gives exact results for logarithms whenever it can. Here is log_21024. You can find the numerical values of mathematical ...
The raw SQL command DROP TABLE drops tables from a database. An alternative is to use the Mathematica command SQLDropTable, described in "Dropping Tables". If you find that ...
ExpIntegralEi[z] gives the exponential integral function Ei(z).