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# Combinatorics Decoded-Master Permutations & Combinations

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## Topics

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## What you will learn

Fundamental Principal of Counting.

Meaning of Factorial

Arrangement of Objects: Box Method of Arrangement

Arrangement of Objects around a circular Table: Circular Arrangements

Selection of Objects.

Different cases of Permutations such as word formation, Circular Permutations, etc.

Different cases of Combinations such as selection of teams.

Division and Arrangements in Groups

Prime Factorization Theorem and Exponent of Prime p in n!

Some other important results and Many More Problems

Fibonacci Sequence

Golden Ratio

Recurrence Relations and Solving Recursive Relations

## Description

What is Combinatorics?

Combinatorics is a young field of mathematics, starting to be an independent branch only in the 20th century. However, combinatorial methods and problems have been around ever since. Many combinatorial problems look entertaining and one can easily say that roots of combinatorics lie in mathematical creativity and games.

Our lives are full of combinations. Combinatorial mathematics is just the science to deal with combinations of discrete items. As an ancient field, the history of combinatorial mathematics can be traced back over 4000 years to the age of the Great Yu in ancient China. Today, combinatorial mathematics is regarded as the basis of computer science since the algorithms in programming heavily rely on the analysis of discrete elements.

We want to arrange elements in a set into patterns satisfying certain rules. Is this possible? Under which conditions is it possible? What are necessary, what sufficient conditions? How do we find such an arrangement? Enumeration: Assume certain arrangements are possible. How many such arrangements exist? Can we say “there are at least this many”, “at most this many” or “exactly this many”? How do we generate all arrangements efficiently?

This course deals with concepts required for the study of Probability and Statistics. Statistics is a branch of science that is an outgrowth of the Theory of Probability. Permutations and Combinations are used in both Statistics and Probability; and they, in turn, involve operations with factorial notation.

This 50+ lecture course includes video explanations of everything from Permutations and Combinations, and it includes more than 60+ examples (with detailed solutions) to help you test your understanding along the way. Become a Permutations and Combinations Master is organized into 8 sections.

What you’ll learn:

• Fundamental Principle of Counting

• Factorial

• Permutations including Circular Permutations

• Combinations

• Application to Number Theory

• Division into Groups

• Arrangements in Groups

• Derangements

• Multinomial Theorem

• Number of Rectangles and Squares

• Exponent of Prime p in n!

• Important Results to remember

This course is based on a very intuitive book Combinatorics Decoded authored by A. K. Pandey available on the Kindle store and is ideal for students who are interested in mathematics or computer science.

Enroll today and learn the mathematical theory needed to solve real-world problems!

## Content

Introduction

What is Combinatorics (Permutation Combination)

Counting Principles

FTC

Fundamental Theorem of Counting: Multiplication Principle

Fundamental Theorem of Counting: Addition Principle

Additional Practice Problems on Fundamental Theory of Counting

Quiz

Arrangement of Objects (Permutations)

Fundamental Theory of Counting

Problems on Permutation

Principle of Multiplication

What is Permutation?

Introducing Factorials

Practice Problems on Permutations

Circular Arrangement

Problems on Circular Permutation

Quiz On Arrangement of Objects

Selection of Objects (combination)

Defining Combination

Problem Solving Combination

Prime Factorization Theorem

Concept of Prime Factorization

Prime Factorization of Factorials

Examples on Prime Factorization

Division into Groups

Division into Groups

Fibonacci Numbers

Rabbits Population and Recursive Relations

Staircase Problem

Golden Ratio

Solving Recursive Relations

Course Assignment

Course Assignment

Udemy ID

## 5/11/2020

Course created date

## 6/1/2021

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