WorkingPrecision is an option for various numerical operations that specifies how many digits of precision should be maintained in internal computations.
Wronskian[{y_1, y_2, ...}, x] gives the Wronskian determinant for the functions y_1, y_2, ... depending on x.Wronskian[eqn, y, x] gives the Wronskian determinant for the ...
ZeroTest is an option to various linear algebra functions that gives a function to use in testing whether symbolic expressions should be treated as zero.
ZeroWidthTimes is an option for selections that specifies whether blank spaces representing multiplication are explicitly shown.
ZetaZero[k] represents the k\[Null]^th zero of the Riemann zeta function on the critical line.ZetaZero[k, t] represents the k\[Null]^th zero with imaginary part greater than ...
ZipfDistribution[\[Rho]] represents a zeta distribution with parameter \[Rho].ZipfDistribution[n, \[Rho]] represents a Zipf distribution with range n.
ZTransform[expr, n, z] gives the Z transform of expr. ZTransform[expr, {n_1, n_2, ...}, {z_1, z_2, ...}] gives the multidimensional Z transform of expr.
$Aborted is a special symbol that is returned as the result from a calculation that has been aborted.
$AssertFunction specifies a function to apply to assertions that fail.
$CharacterEncoding specifies the default raw character encoding to use for input and output functions.