Accuracy[x] gives the effective number of digits to the right of the decimal point in the number x.
AppendTo[s, elem] appends elem to the value of s, and resets s to the result.
Composition[f_1, f_2, f_3, ...] represents a composition of the functions f_1, f_2, f_3, ....
Exp
(Built-in Mathematica Symbol) Exp[z] gives the exponential of z.
FindRoot[f, {x, x_0}] searches for a numerical root of f, starting from the point x = x_0.FindRoot[lhs == rhs, {x, x_0}] searches for a numerical solution to the equation lhs ...
ImageCooccurrence[image, n] gives the n*n cooccurrence matrix for image.ImageCooccurrence[image, n, ker] computes a cooccurrence matrix for arbitrary spatial relationships ...
InverseJacobiCD[v, m] gives the inverse Jacobi elliptic function cd -1 (v \[VerticalSeparator] m).
InverseJacobiCN[v, m] gives the inverse Jacobi elliptic function cn -1 (v \[VerticalSeparator] m).
InverseJacobiCS[v, m] gives the inverse Jacobi elliptic function cs -1 (v \[VerticalSeparator] m).
InverseJacobiDN[v, m] gives the inverse Jacobi elliptic function dn -1 (v \[VerticalSeparator] m).