If you are already familiar with objects from another programming language (such as Java or C++), then you will immediately be familiar with objects in Sage. If not, this example should help you understand the concept:
real_number = RR(10/3)
print(type(real_number))
print('Value: ' + real_number.str())
print(real_number.n(digits=5))
print('Precision: ' + str(real_number.precision()))
print(real_number.ceil())The result should look like this:
We've already been using objects without knowing it—every number in Sage is actually an object! An object is a construct that consists of data (called attributes) and behaviours (called methods). An object's attributes and methods are defined by a class. We say that an object is an instance of a particular class. In our example, the object called real_number is an instance of a class called RR. We create an object using syntax that is just like a function call:
new_object = Class_Name(arg1, arg2...