WeightedGraphQ[g] yields True if the graph g is a weighted graph and False otherwise.
WheelGraph[n] gives the wheel graph with n vertices W_n.
Which
(Built-in Mathematica Symbol) Which[test_1, value_1, test_2, value_2, ...] evaluates each of the test_i in turn, returning the value of the value_i corresponding to the first one that yields True.
While
(Built-in Mathematica Symbol) While[test, body] evaluates test, then body, repetitively, until test first fails to give True.
WignerD
(Built-in Mathematica Symbol) WignerD[{j, m_1, m_2}, \[Psi], \[Theta], \[Phi]] gives the Wigner D-function D_m_1^m_2, j(\[Psi], \[Theta], \[Phi]).WignerD[{j, m_1, m_2}, \[Theta], \[Phi]] gives the Wigner ...
WignerSemicircleDistribution[r] represents a Wigner semicircle distribution with radius r centered at the origin.WignerSemicircleDistribution[a, r] represents a Wigner ...
WindowClickSelect is a notebook option that specifies whether the window for the notebook should become selected if you click it.
WindowElements is a notebook option that specifies the elements to include in the window used to display the notebook on the screen.
WindowFloating is a notebook option that specifies whether the window for the notebook should float on top of other windows when it is displayed on the screen.
WindowFrameElements is an option for notebooks that specifies the elements to include in the frame of the window used to display the notebook on the screen.