Numpy matrix.sort() Last Updated : 19 Aug, 2025 Comments Improve Suggest changes 1 Likes Like Report numpy.matrix.sort() is a method in NumPy sort the elements of a matrix along a specified axis. It returns a sorted copy of the matrix without changing the original matrix.Example: Python import numpy as np m = np.matrix([[9, 2, 5], [6, 4, 1]]) sorted_m = m.sort(axis=1) print(m) Output[[2 5 9] [1 4 6]] Explanation: Each row is sorted independently.Syntaxmatrix.sort(axis=-1, kind='quicksort', order=None)Parameters:axis: Direction to sort; default is 1 (last axis), 0 for columns, 1 for rows.kind: Sorting algorithm options include 'quicksort' (default), 'mergesort', 'heapsort', 'stable'.order: For structured arrays, sort.Returns: A new sorted matrix (not in-place).ExamplesExample 1: Sort a matrix column-wise Python import numpy as np m = np.matrix([[3, 1], [2, 4]]) m.sort(axis=0) print(m) Output[[2 1] [3 4]] Explanation: Each column is sorted in ascending order.Example 2: Using different sorting algorithms Python import numpy as np m = np.matrix([[5, 3, 1], [4, 2, 6]]) m.sort(axis=1, kind='mergesort') print(m) Output[[1 3 5] [2 4 6]] Explanation: The matrix is sorted row-wise using mergesort. Create Quiz Comment J jitender_1998 Follow 1 Improve J jitender_1998 Follow 1 Improve Article Tags : Python Python-numpy Python numpy-Matrix Function Explore Python FundamentalsPython Introduction 2 min read Input and Output in Python 4 min read Python Variables 4 min read Python Operators 4 min read Python Keywords 2 min read Python Data Types 8 min read Conditional Statements in Python 3 min read Loops in Python - For, While and Nested Loops 5 min read Python Functions 5 min read Recursion in Python 4 min read Python Lambda Functions 5 min read Python Data StructuresPython String 5 min read Python Lists 4 min read Python Tuples 4 min read Python Dictionary 3 min read Python Sets 6 min read Python Arrays 7 min read List Comprehension in Python 4 min read Advanced PythonPython OOP Concepts 11 min read Python Exception Handling 5 min read File Handling in Python 4 min read Python Database Tutorial 4 min read Python MongoDB Tutorial 3 min read Python MySQL 9 min read Python Packages 10 min read Python Modules 3 min read Python DSA Libraries 15 min read List of Python GUI Library and Packages 3 min read Data Science with PythonNumPy Tutorial - Python Library 3 min read Pandas Tutorial 4 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 3 min read StatsModel Library - Tutorial 3 min read Learning Model Building in Scikit-learn 6 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 6 min read Web Development with PythonFlask Tutorial 8 min read Django Tutorial | Learn Django Framework 7 min read Django ORM - Inserting, Updating & Deleting Data 4 min read Templating With Jinja2 in Flask 6 min read Django Templates 5 min read Build a REST API using Flask - Python 3 min read Building a Simple API with Django REST Framework 3 min read Python PracticePython Quiz 1 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like