ExtensionDegree[f] gives the degree of the extension of the field f over its base field.
FieldExp[f, n] gives the value of the discrete exponential of n associated with the field f.
FieldInd[e] gives the value of the discrete logarithm of e.
FieldIrreducible[f, s] gives the irreducible polynomial in the symbol s associated with the field f.
FromElementCode[f, code] gives the field element of f associated with code, a non-negative integer less than the field size of f.
FunctionOfCode[g] is a setting for the option FormatType that specifies the format g[c] for an element, where c is the integer code for the element.
FunctionOfCoefficients[g] is a setting for the option FormatType that specifies the format g[c_0, c_1, ...] for an element, where c_0, c_1, ... are the coefficients in the ...
GF
(Finite Fields Package Symbol) GF[p, d] gives the Galois field that is a degree d extension of the prime field of p elements.GF[q] gives the Galois field with q elements, for q a prime power.GF[p, ilist] ...
IrreduciblePolynomial[s, p, d] gives an irreducible polynomial in the symbol s of degree d over the integers modulo the prime p.
PerfectPowerQ[e, n] gives True if e is a perfect n\[Null]^th power in its field, and False otherwise.