numpy.binary_repr() in Python Last Updated : 29 Nov, 2018 Comments Improve Suggest changes Like Article Like Report numpy.binary_repr(number, width=None) function is used to represent binary form of the input number as a string. For negative numbers, if width is not given, a minus sign is added to the front. If width is given, the two’s complement of the number is returned, with respect to that width. In a two’s-complement system, negative numbers are represented by the two’s complement of the absolute value. This is the most common method of representing signed integers on computers. Syntax : numpy.binary_repr(number, width=None) Parameters : number : Input number. Only an integer decimal number can be used as input. width : [int, optional] The length of the returned string if number is positive, or the length of the two’s complement if number is negative, provided that width is at least a sufficient number of bits for number to be represented in the designated form. If the width value is insufficient, it will be ignored, and number will be returned in binary (number > 0) or two’s complement (number < 0) form with its width equal to the minimum number of bits needed to represent the number in the designated form. Return : binary string representation of the input number. Code #1 : Working Python # Python program explaining # binary_repr() function import numpy as geek in_num = 10 print ("Input number : ", in_num) out_num = geek.binary_repr(in_num) print ("binary representation of 10 : ", out_num) Output : Input number : 10 binary representation of 10 : 1010 Code #2 : Python # Python program explaining # binary_repr() function import numpy as geek in_arr = [5, -8 ] print ("Input array : ", in_arr) # binary representation of first array # element without using width parameter out_num = geek.binary_repr(in_arr[0]) print("Binary representation of 5") print ("Without using width parameter : ", out_num) # binary representation of first array # element using width parameter out_num = geek.binary_repr(in_arr[0], width = 5) print ("Using width parameter: ", out_num) print("\nBinary representation of -8") # binary representation of 2nd array # element without using width parameter out_num = geek.binary_repr(in_arr[1]) print ("Without using width parameter : ", out_num) # binary representation of 2nd array # element using width parameter out_num = geek.binary_repr(in_arr[1], width = 5) print ("Using width parameter : ", out_num) Output : Input array : [5, -8] Binary representation of 5 Without using width parameter : 101 Using width parameter: 00101 Binary representation of -8 Without using width parameter : -1000 Using width parameter : 11000 Comment More info J jana_sayantan Follow Improve Article Tags : Python Python-numpy Python numpy-Binary Operation 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