ROBOT.LK

I am Searching to learn Math Faunctions and Have some Basic Ideas, And I need to learn things like this f(x).

I referred BIT reference book but I have Doubts. Then I searched then Net Then Found some YouTube Videos And they are easy to Understand. But I prefer if you guys can give me video links It would be great since you know the Concept very well.

Here is the Topics we have for BIT in Functions.

Function

Function as a mapping from a set A to a set B
Range of function; Function from a finite set A onto a set B
One to one functions
Bijections
Inverse functions
Composite functions

ROBOT.LK already has a lits of video added for Discrete Mathematics. Don't know how you miss that. Visit Discrete Mathematical Structures Tutorial

There are lots of video tutorials taught by a professional Indian lecturer. You don't have to see all. Just see the following tutorials.

Set theory
Lecture 10 - Sets
Lecture 11 - Induction
Lecture 12 - Set Operations on Strings Over an Alphabet

Relations
Lecture 13 - Relations
Lecture 18 - Special Properties of Relations
Lecture 19 - Closure of Relations
Lecture 20 - Closure of Relations (Contd.)
Lecture 21 - Order Relations
Lecture 22 - Order and Relations and Equivalence Relations
Lecture 23 - Equivalence relations and partitions

Functions
Lecture 24 - Functions
Lecture 25 - Functions (Contd.)
Lectures 26 - Functions (Contd.)

Future Subjects?
Lecture 14- Graphs
Lecture 15 - Graphs (Contd.)
Lecture 16 - Trees
Lecture 17 - Trees and Graphs

Oops My Bad Thank you Very Much