What is Function ? - Concepts of Function in Mathematics (Introduction & Basics)

• published: 26 Jan 2013
• views: 25312

Learn what is function in math - Learn all the concepts of Function in Mathematics. This video will gives you introduction to function in mathematics and boost you up with all the required basics of function of mathematics. You can start wonderful journey of learning Relation and Function from this video onward. Its very easy to understand the definition of function if you already familiar with concept of relation in mathematics. Function are also relation in mathematics, more you can define it as 'special type of relation in which every member of domain of a relation as one and only one unique image in co -domain' Such relations are called function. If you need concept of domain from our day to day life, then function cab be defined as a machine, where we input our raw material and we get some different output. Everything is function all around us. Like in a mill, we input wheat or corn and we get out as flour. Exactly in mathematics,function acts like a mill, we input some numbers of variables and we get output something else. Let's say F(X) = x^2, this is also a function ans we read function as - f of x equals to x square. So. in this function if I am plugging x then I get squared by this machine. So, If I am putting , inserting any real number in this function, then it will give me the square of that number. If I am inserting -2 then my out put will be 4 . similarly if I am putting 100 in this function then I will get 10000. So, I mean to say, function acts just like a machine. There are few terms and symbols of function mathematics , we should understand. The element of domain are compared with objects as members of range are called images of the domain elements. Sometime even we say members of domain as pre-images. There are so many types of function, we will learn those types of function in our video lesson. After understanding the basic concepts of function math with the help of relation, we will start learning some standard function in mathematics like constant function, identical function, Signum function, floor function, ceiling function etc. I believe you will like this lesson and please if you have any doubt to ask me regarding this lesson of mathematics, Please feel free to ask in comment section below. Please like this video and subscribe to my channel to motivate me. You can connect with me in Facebook @ http://facebook.com/ItsMyAcademy You can connect with me on Twitter @ http://twitter.com/ItsMyAcademy And, please don't forget to visit and support us at our website - http://ItsMyAcademy.com