Flatten a Matrix in Python using NumPy Last Updated : 15 Jul, 2025 Comments Improve Suggest changes Like Article Like Report Let's discuss how to flatten a Matrix using NumPy in Python. By using ndarray.flatten() function we can flatten a matrix to one dimension in python. Syntax:numpy_array.flatten(order='C') order:'C' means to flatten in row-major.'F' means to flatten in column-major.'A' means to flatten in column-major order if a is Fortran contiguous in memory, row-major order otherwise.'K' means to flatten a in the order the elements occur in memory. The default is 'C'. Return:Flattened 1-D matrix Example 1: python3 # importing numpy as np import numpy as np # declare matrix with np gfg = np.array([[2, 3], [4, 5]]) # using array.flatten() method flat_gfg = gfg.flatten() print(flat_gfg) Output: [2 3 4 5] Example 2: python3 # importing numpy as np import numpy as np # declare matrix with np gfg = np.array([[6, 9], [8, 5], [18, 21]]) # using array.flatten() method gfg.flatten() Output: array([ 6, 9, 8, 5, 18, 21]) Example 3: python3 # importing numpy as np import numpy as np # declare matrix with np gfg = np.array([[6, 9, 12], [8, 5, 2], [18, 21, 24]]) # using array.flatten() method flat_gfg = gfg.flatten(order='A') print(flat_gfg) Output: [ 6, 9, 12, 8, 5, 2, 18, 21, 24] Comment More info M misraaakash1998 Follow Improve Article Tags : Python Python-numpy Python numpy-arrayManipulation Explore Python FundamentalsPython Introduction 3 min read Input and Output in Python 4 min read Python Variables 5 min read Python Operators 5 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 7 min read Python Functions 5 min read Recursion in Python 6 min read Python Lambda Functions 5 min read Python Data StructuresPython String 5 min read Python Lists 5 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 2 min read Python MySQL 9 min read Python Packages 12 min read Python Modules 7 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 6 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 15+ min read StatsModel Library- Tutorial 4 min read Learning Model Building in Scikit-learn 8 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 7 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 7 min read Python | Build a REST API using Flask 3 min read How to Create a basic API using Django Rest Framework ? 4 min read Python PracticePython Quiz 3 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like