DynamicModule[{x, y, ...}, expr] represents an object which maintains the same local instance of the symbols x, y, ... in the course of all evaluations of Dynamic objects in ...
EllipticLog[{x, y}, {a, b}] gives the generalized logarithm associated with the elliptic curve y^2 = x^3 + a x^2 + b x.
Hyperfactorial[n] gives the hyperfactorial function H(n).
IntegerQ[expr] gives True if expr is an integer, and False otherwise.
PrimeZetaP[s] gives prime zeta function P(s).
QFactorial[n, q] gives the q-factorial [n] q!.
RiemannR[x] gives the Riemann prime counting function R(x).
SpheroidalRadialFactor[n, m, c] gives the spheroidal radial factor with degree n and order m.
Unprotect[s_1, s_2, ...] removes the attribute Protected for the symbols s_i. Unprotect["form_1", "form_2", ...] unprotects all symbols whose names textually match any of the ...
When you use //N to get a numerical result, Mathematica does what a standard calculator would do: it gives you a result to a fixed number of significant figures. You can also ...