KleinInvariantJ (Built-in Mathematica Symbol)

KleinInvariantJ[\[Tau]] gives the Klein invariant modular elliptic function J(\[Tau]).

CarmichaelLambda (Built-in Mathematica Symbol)

CarmichaelLambda[n] gives the Carmichael function \[Lambda](n), defined as the smallest integer m such that k^m \[Congruent] 1 mod n for all k relatively prime to n.

Unprotect (Built-in Mathematica Symbol)

Unprotect[s_1, s_2, ...] removes the attribute Protected for the symbols s_i. Unprotect["form_1", "form_2", ...] unprotects all symbols whose names textually match any of the ...

JacobiCD (Built-in Mathematica Symbol)

JacobiCD[u, m] gives the Jacobi elliptic function cd(u | m).

JacobiDC (Built-in Mathematica Symbol)

JacobiDC[u, m] gives the Jacobi elliptic function dc(u | m).

JacobiNC (Built-in Mathematica Symbol)

JacobiNC[u, m] gives the Jacobi elliptic function nc(u | m).

JacobiNS (Built-in Mathematica Symbol)

JacobiNS[u, m] gives the Jacobi elliptic function ns(u | m).

JacobiSC (Built-in Mathematica Symbol)

JacobiSC[u, m] gives the Jacobi elliptic function sc(u | m).

InverseSurvivalFunction (Built-in Mathematica Symbol)

InverseSurvivalFunction[dist, q] gives the inverse of the survival function for the symbolic distribution dist as a function of the variable q.

ExpIntegralE (Built-in Mathematica Symbol)

ExpIntegralE[n, z] gives the exponential integral function E_n (z).