TransferFunctionFactor[tf] factors the polynomial terms in the numerators and denominators of the TransferFunctionModel object tf.
TrigFactor[expr] factors trigonometric functions in expr.
TrimmedMean[list, f] gives the mean of the elements in list after dropping a fraction f of the smallest and largest elements.TrimmedMean[list, {f_1, f_2}] gives the mean when ...
UndirectedGraph[g] gives an undirected graph from the directed graph g.
UndirectedGraphQ[g] yields True if the graph g is an undirected graph and False otherwise.
VertexLabeling is an option for GraphPlot and related functions which specifies whether labeling should be included by default for vertices in graphs.
ViewAngle is an option for Graphics3D and related functions which gives the opening half-angle for a simulated camera used to view the three-dimensional scene.
WaveletImagePlot[dwd] plots the basis tree of wavelet image coefficients in the DiscreteWaveletData dwd.WaveletImagePlot[dwd, r] plots coefficients up to refinement level ...
WaveletScale is an option for ContinuousWaveletTransform and related constructs used to specify the smallest resolvable scale.
WhittakerW[k, m, z] gives the Whittaker function W k, m (z).