Category: Functions

Functions in math have paramount importance and let us study different types of functions. We have four functions based on the mapping of elements from set A to set B. f: A → B is said to be one-to-one or injective, if the images of distinct elements of A under f are distinct, i.e, for every…

A function in math means a correspondence from one value x of the first set to another value y of the second set. This correspondence can be of the following four types. But every correspondence is not a function.  In the example below, only 1 – 1 and many to one are examples of a function because…

The rule which specifies a function can come in many different forms based on how it is defined. They can be defined as piecewise-defined-functions or as formulas. When we define f(x) = √x, for x ≥ 0, then the inputs are the numbers that we provide and the ‘taking square root’ function accepts all non-negative real numbers…

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math. These functions are usually denoted by letters such…

Precalculus in mathematics is a course that includes trigonometry and algebra designed to prepare students for the study of calculus. In precalculus, we focus on the study of advanced mathematical concepts including functions and quantitative reasoning. Some important topics covered under precalculus are, Functions Inverse Functions Complex Numbers Rational Function