Residue?

Given an element a of a field K and an integer r, checks if there exists b element of K such that b to the power of r equals a.

residue?(Element, Field, Integer)

Given an element a of a field, the field K where it belongs and integer r, returns true if there exists b element of K such that b to the power of r equals a, and false otherwise.

residue?(Element, Field)

Given an element a of a field and the field K where it belongs, returns true if there exists b element of K such that b squared equals a, and false otherwise.

residue?(Element, Integer)

Given an element a of a field K and integer r, returns true if there exists b element of K such that b to the power of r equals a, and false otherwise.

residue?(Element)

Given an element a of a field K, returns true if there exists b element of K such that b squared equals a, and false otherwise.