Types of functions and their computations

Hello readers

Let’s start to talk more about functions….

By this post, I will make you able to identify the function type and count them, but first you promise me that you know what is function very well, please refer previous post,


In short, function (machine) outputs in one-one, onto, many one, and into manner………..Not one – one implies many one and not onto implies into…

To answer the questions like….How many total functions from domain A to codomain B,….How many of them are one-one, onto ,many one, into etc,go through the following;

Summary and questions for practice

You can ask your queries on the comment section. My next post is related to determine domain of function.

Thank you

Stay at home

Be safe, Be happy

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