AnimationRunning is an option to Animate and related functions that specifies whether the animation they create is running.
CounterAssignments is an option for selections that sets the value of a specified counter.
Count
(Built-in Mathematica Symbol) Count[list, pattern] gives the number of elements in list that match pattern. Count[expr, pattern, levelspec] gives the total number of subexpressions matching pattern that ...
Replace
(Built-in Mathematica Symbol) Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...
$ScheduledTask returns the current ScheduledTaskObject.
CriticalSection[{var_1, var_2, ...}, expr] locks the variables var_i with respect to parallel computation, evaluates expr, then releases the var_i.
EulerGamma is Euler's constant \[Gamma], with numerical value \[TildeEqual] 0.577216.
FromCharacterCode[n] gives a string consisting of the character with integer code n. FromCharacterCode[{n_1, n_2, ...}] gives a string consisting of the sequence of ...
GraphCenter[g] gives the set of vertices with minimum eccentricity in the graph g.
WattsStrogatzGraphDistribution[n, p] represents the Watts\[Dash]Strogatz graph distribution for n-vertex graphs with rewiring probability p.WattsStrogatzGraphDistribution[n, ...