FindShortestTour[{e_1, e_2, ...}] attempts to find an ordering of the e_i that minimizes the total distance on a tour that visits all the e_i once.
FindThreshold[image] finds a global threshold value that partitions the intensity values in image into two intervals.
FindVertexCover[g] finds a vertex cover of the graph g with a minimum number of vertices.
FinishDynamic[] finishes updating and displaying all currently visible Dynamic objects.
FiniteAbelianGroupCount[n] gives the number of finite Abelian groups of order n.
FiniteGroupCount[n] gives the number of finite groups of order n.
FiniteGroupData[name, " property"] gives the value of the specified property for the finite group specified by name.FiniteGroupData["class"] gives a list of finite groups in ...
First
(Built-in Mathematica Symbol) First[expr] gives the first element in expr.
FischerGroupFi22[] represents the sporadic simple Fischer group Fi_22.
FischerGroupFi23[] represents the sporadic simple Fischer group Fi_23.