1) The calculus helps in understanding the changes between values that are related by a function. It is used in different areas such as physics, biology and sociology and so on. The calculus is the language of engineers, scientists and economics.

2) Linear programming is a method for solving problems in which a particular quality that must be maximized or minimized is limited other factors. An objective function is an algebraic expression in two or more variables describing a quality that must be maximized.

2) Linear programming is a method for solving problems in which a particular quality that must be maximized or minimized is limited other factors. An objective function is an algebraic expression in two or more variables describing a quality that must be maximized.