ErlangDistribution[k, \[Lambda]] represents the Erlang distribution with shape parameter k and rate \[Lambda].
EulerGamma is Euler's constant \[Gamma], with numerical value \[TildeEqual] 0.577216.
ExpandDenominator[expr] expands out products and powers that appear as denominators in expr.
ExpandNumerator[expr] expands out products and powers that appear in the numerator of expr.
ExportString[expr, " format"] generates a string corresponding to expr exported in the specified format. ExportString[rules, {"format", "Rules"}] gives explicit rules for ...
FindEdgeCover[g] finds an edge cover of the graph g with a minimum number of edges.
FindGraphIsomorphism[g_1, g_2] finds an isomorphism that maps the graph g_1 to g_2 by renaming vertices.
For
(Built-in Mathematica Symbol) For[start, test, incr, body] executes start, then repeatedly evaluates body and incr until test fails to give True.
FortranForm[expr] prints as a Fortran language version of expr.
FrameTicksStyle is an option for 2D graphics functions that specifies how frame ticks should be rendered.