Cryptography - Sage

sage: x = 2sage: type(x)sage: y = 2/1sage: type(y)sage: z = ’2’sage: type(z)The class of an object determines which functions apply to it. The printing of an objectdoes not in general determine the object itself.Each class of object has special member functions which apply to it; the result dependson the function definition. A member function is called by typing the object name, a ’.’,followed by the function name and any arguments it takes in parentheses. For instance,the integer 2 is not a unit in Z, since there is no element 1/2 in Z. In contrast, the element2 as a rational number is a unit.sage: x.is_unit()Falsesage: y.is_unit()TrueAn easy way to determine what member functions exist is to type the first few charactersand a TAB to see what functions complete it:sage: x.isx.is_nilpotent x.is_prime x.is_squarefree x.is_zerox.is_one x.is_square x.is_unit x.isqrtsage: x.isTo determine what a function does, type (the object, ’.’, and) the function name, followedby a ? (and return):89