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Fundamentals of R Language 1 About R tutorial 2 Introduction to R 3 About R, Do & Don't 4 Why R programming Language

Overview of R Language 1 General Properties 2 First Program - Hello World 3 Core Characteristics

Data Types in R Language 1 Data types introduction 2 Data types Examples

Variable in R Language 1 Introduction to Variable

Operators in R Language 1 Operator Introduction 2 Arithmetic Operators 3 Relational Operators 4 Logical Operators in R 5 Assignment Operators 6 Miscellaneous Operators

Decision Making of R Language 1 Decision Making Introduction 2 if statement 3 if...else statement 4 switch statement 5 if…else Ladder 6 ifelse() function

Loop control in R Language 1 Loop Introduction in R Language 2 For Loop in R Language 3 While Loop in R Language 4 Repeat Loop in R Language 5 Break Statement in R Language 6 Next Statement

Array in R Language 1 Array Introduction

String in R Language 1 String Introduction

Function in R Language 1 Function Introduction 2 Your First Function 3 Built-in Function

Vector in R Language 1 Vector Introduction

Lists in R Language 1 List Introduction

Matrices in R Language 1 Matrix Introduction 2 Matrix Construction 3 Addition & Subtraction 4 Multiplication & Division

Factors in R Language 1 Factor Introduction

Data Frames in R Language 1 Data Frame Introduction 2 Data Frame details 3 Filtering and subsetting data 4 Aggregate function

Packages in R Language 1 Package Introduction in R Programming

Data Reshaping in R language 1 Data Reshaping Introduction

Data and File Management 1 Types of Input 2 CSV Files 3 Excel file 4 Reading and writing data

Charts & Graphs 1 Graphical Procedures Introduction 2 plot function 3 Plot using base graphics 4 Plot using ggplot2

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Matrix Multiplication and Division in R Programming Language: Methods and Examples

Rumman Ansari July 05, 2024 6,415 views

Matrix Multiplication and Division in R Programming Language: Methods and Examples

Matrix Computations

Various mathematical operations are performed on the matrices using the R operators. The result of the operation is also a matrix.

The dimensions (number of rows and columns) should be same for the matrices involved in the operation.

Matrix Multiplication & Division

# Create two 2x3 matrices.
matrix1

When we execute the above code, it produces the following result −

[,1] [,2] [,3]
[1,]    3   -1    2
[2,]    9    4    6
     [,1] [,2] [,3]
[1,]    5    0    3
[2,]    2    9    4
Result of multiplication 
     [,1] [,2] [,3]
[1,]   15    0    6
[2,]   18   36   24
Result of division 
     [,1]      [,2]      [,3]
[1,]  0.6      -Inf 0.6666667
[2,]  4.5 0.4444444 1.5000000