Algebra
Algebra is a more basic branch of mathematics. It has many research objects. Such as number, quantity, algebra, relationship, equation theory, algebra structure and so on are algebra research object. Elementary algebra is usually taught in high school, introducing the basic idea of algebra: to study what happens when we add or multiply a number, and understand the concept of variables and how to build polynomials and find their roots. Algebra research object is not only the number, there are a variety of abstract structure. For example, an integer set as a set with addition, multiplication, and order relations is an algebraic structure. In which we only care about the relationship and its nature, and for the "number itself is what" this problem does not care. Common algebraic structure types are groups, rings, domains, modes, linear spaces, and so on. ...