RamanujanTauL[s] gives the Ramanujan tau Dirichlet L-function L(s).
WeierstrassHalfPeriods[{g_2, g_3}] gives the half-periods {\[Omega], \[Omega]^\[Prime]} for Weierstrass elliptic functions corresponding to the invariants {g_2, g_3}.
I
(Built-in Mathematica Symbol) I represents the imaginary unit Sqrt[-1].
SetPrecision[expr, p] yields a version of expr in which all numbers have been set to have precision p.
GaussianMatrix[r] gives a matrix that corresponds to a Gaussian kernel of radius r. GaussianMatrix[{r, \[Sigma]}] gives a matrix corresponding to a Gaussian kernel with ...
InternallyBalancedDecomposition[ss] yields the internally balanced decomposition of the StateSpaceModel object ss. The result is a list {s, ib} where s is the similarity ...
The differential equations that arise in practice are of two types. Here is an example of the first type. Here is an example of the second type. This equation has a symbolic ...
Widget["ColorChooser"] provides a panel for making a color selection from various color model interfaces.
NLimit
(Numerical Calculus Package Symbol) NLimit[expr, z -> z_0] numerically finds the limiting value of expr as z approaches z_0.
VariationalBound[f, u[x ], {x, x_min, x_max}, u_t, {a}, {b}, ...] finds values of the parameters a, b, ... of a trial function u_t that extremize the functional ...