Applied mathematics is the application of mathematical methods by different fields such as physics, engineering, medicine, biology, business, computer science, and industry. Thus, applied mathematics is a combination of mathematical science and specialized knowledgeApplied mathematics is the application of mathematical methods by different fields such as physics, engineering, medicine, biology, business, computer science, and industry. Thus, applied mathematics is a combination of mathematical science and specialized knowledge Applied mathematics involves the application of mathematics to problems which arise in various areas, e.g., science, engineering or other diverse areas, and/or the development of new or improved methods to meet the challenges of new problems.The easiest way to think of it is that pure maths is maths done for its own sake, while applied maths is maths with a practical use. ... Other examples of applied maths might be statistics or probability theory. Pure maths, on the other hand, is separate from the physical world.based on a fixed amount per month or year. Usually paid weekly or monthly. Example: Sandy has an annual salary of $120,000, which is paid weekly. ... When paid a salary you usually don't get extra for overtime work but you often get other benefits.