TimeUsed (Built-in Mathematica Symbol)

TimeUsed[] gives the total number of seconds of CPU time used so far in the current Mathematica session.

TopologicalSort (Built-in Mathematica Symbol)

TopologicalSort[g] gives a list of vertices of g in topologically sorted order for a directed acyclic graph g.

TraceOn (Built-in Mathematica Symbol)

TraceOn is an option for Trace and related functions which specifies when tracing should be switched on.

UpSet (Built-in Mathematica Symbol)

lhs ^= rhs assigns rhs to be the value of lhs, and associates the assignment with symbols that occur at level one in lhs.

Verbatim (Built-in Mathematica Symbol)

Verbatim[expr] represents expr in pattern matching, requiring that expr be matched exactly as it appears, with no substitutions for blanks or other transformations.

VertexEccentricity (Built-in Mathematica Symbol)

VertexEccentricity[g, s] gives the length of the longest shortest path from the source s to every other vertex in the graph g.

ViewVector (Built-in Mathematica Symbol)

ViewVector is an option for Graphics3D and related functions which specifies the position and direction of a simulated camera used to view three-dimensional objects.

ViewVertical (Built-in Mathematica Symbol)

ViewVertical is an option for Graphics3D and related functions which specifies what direction in scaled coordinates should be vertical in the final image.

WienerFilter (Built-in Mathematica Symbol)

WienerFilter[image, r] removes noise from image by applying a range-r Wiener filter.WienerFilter[image, r, ns] assumes an additive noise power value ns.

$KernelID (Built-in Mathematica Symbol)

$KernelID is a unique ID number assigned to each running parallel kernel.