BlockRandom[expr] evaluates expr with all pseudorandom generators localized, so that uses of SeedRandom, RandomInteger, and related functions within the evaluation of expr do ...
ButtonBar[{lbl_1 :> act_1, lbl_2 :> act_2, ...}] represents a bar of buttons with labels lbl_i that perform actions act_i when pressed.
CatalanNumber[n] gives the n\[Null]^th Catalan number C_n.
Fibonacci[n] gives the Fibonacci number F_n. Fibonacci[n, x] gives the Fibonacci polynomial F_n (x).
GoldenRatio is the golden ratio \[Phi] = 1/2 (Sqrt[5] + 1), with numerical value \[TildeEqual] 1.61803.
Hash
(Built-in Mathematica Symbol) Hash[expr] gives an integer hash code for the expression expr.Hash[expr, " type"] gives an integer hash code of the specified type for expr.
ShortestPathFunction[type, data] represents a function that gives the shortest path from a source vertex s to target vertex t in a graph.
UniformGraphDistribution[n, m] represents a uniform graph distribution on n-vertex, m-edge graphs.
VertexSize is an option and property for Graph and related functions that specifies the size used for vertices.
ZetaZero[k] represents the k\[Null]^th zero of the Riemann zeta function on the critical line.ZetaZero[k, t] represents the k\[Null]^th zero with imaginary part greater than ...