Rank And Nullity Calculator

To calculate the rank and nullity of a matrix, determine its rank (number of linearly independent rows or columns) and nullity (dimension of the null space). These values satisfy the Rank-Nullity Theorem.

The Rank and Nullity Calculator simplifies the calculation of rank and nullity for matrices. These concepts are fundamental in linear algebra and are used in solving systems of linear equations, determining linear transformations, and analyzing vector spaces.

Formula:

Contents

1 Formula:
2 Solved Calculations:
3 What is the Rank and Nullity Calculator?
4 Final Words:

$\text{Rank}(A) + \text{Nullity}(A) = n$

Variable	Description	Unit
$\text{Rank}(A)$	Number of linearly independent rows/columns	Integer
$\text{Nullity}(A)$	Dimension of the null space of the matrix	Integer
$n$	Number of columns in the matrix	Integer

Solved Calculations:

Example 1:

Step	Value	Explanation
Matrix	$\begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{bmatrix}$	Original matrix
Rank	$2$	Two linearly independent rows/columns
Nullity	$1$	$\text{Nullity} = 3 - \text{Rank}$
Verification	$2 + 1 = 3$	Rank-Nullity Theorem satisfied

Example 2:

Step	Value	Explanation
Matrix	$\begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}$	Original matrix (Identity matrix)
Rank	$3$	All rows/columns are linearly independent
Nullity	$0$	$\text{Nullity} = 3 - \text{Rank}$
Verification	$3 + 0 = 3$	Rank-Nullity Theorem satisfied

What is the Rank and Nullity Calculator?

The Rank and Nullity Calculator is a dynamic tool that calculates the rank and nullity of a given matrix, aiding in linear algebra applications.

This calculator is essential for determining the dimensions of a matrix's row space and null space, which are vital in understanding its properties and transformations.

To use the calculator, input the matrix dimensions and values. The tool then applies the rank-nullity theorem, which states that the sum of the rank (dimension of column space) and nullity (dimension of null space) equals the number of columns.

For example, a 3x3 matrix with a rank of 2 will have a nullity of 1. This calculator simplifies tasks such as finding bases for column spaces and null spaces, or reducing a matrix to row echelon form.

Additionally, it supports students and professionals working on linear transformations, solving systems of linear equations, and studying the relationships between matrix dimensions.

Final Words:

To summarize, the Rank and Nullity Calculator streamlines matrix computations, making it a powerful resource for understanding matrix properties in linear algebra. It is particularly useful for academic studies, research, and professional applications.