How to Turn a Matrix Upside Down in MATLAB

Matrices are the fundamental building blocks of data science and machine learning. They are used to represent data in a way that makes it easy to manipulate and analyze. One of the most common operations on matrices is to turn them upside down. This is useful in visualizing and analyzing data. Further, it also makes it easy to work with functions that only work with row vectors.

Read this guide if you want to turn a matrix upside down in MATLAB.

How To Turn a Matrix Upside Down in MATLAB?

MATLAB provides a built-in function called flipud() that allows you to flip the matrix upside down in MATLAB. This function will work on vectors as well as matrices and uses only a single argument wither in the form of vectors or matrices.

Syntax
The basic syntax to use flipud() function in MATLAB is given below:

Here, A denotes the vector or matrix whose rows are going to be flipped in the up-down direction.

Return Value

The flipud() function will return a flipped vector or matrix having rows flipped in the up-down direction.

Examples

The following are some simple examples that you can follow to learn the use of the flipud() function in MATLAB.

Example 1: Turn a 3×3 Matrix Upside Down in MATLAB Using flipud() Function

The following example uses a 3×3 matrix and applies the flipud() function to flip the row of the matrix upside down.

Example 2: Turn a 5×5 Matrix Upside Down in MATLAB Using flipud() Function

The example provided below creates a 5×5 matrix using the magic(5) function and then uses the flipud() function to flip the rows of the matrix.

Conclusion

Turning the matrix upside down is a fundamental task that can be used for visualizing and analyzing the data as well as working with functions that supports row vectors. The built-in MATLAB function flipud() is used that flips the rows of the matrix upside down, making it easy for you to quickly get the flipped matrix in MATLAB. The above guide has provided the basics of the flipud() function including its syntax and a few examples.