Free course

Number systems

Free statement of participation on completion

Number systems and the rules for combining numbers can be daunting. This free course, Number systems, will help you to understand the detail of rational and real numbers, complex numbers and integers. You will also be introduced to modular arithmetic and the concept of a relation between elements of a set.

Course learning outcomes

After studying this course, you should be able to:

  • understand the arithmetical properties of the rational and real numbers
  • understand the definition of a complex number
  • perform arithmetical operations with complex numbers
  • explain the terms modular addition and modular multiplication
  • explain the meanings of a relation defined on a set, an equivalent relation and a partition of a set.