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OpenGenus IQ, an open-source Computer Science Publication House, is driven by 2500+ BSc/MSc/PhD holders globally, exploring Algorithms, Deep Learning, System Design, and more since 2017.

Machine Learning (ML)

SGEMM

In this article, we have covered SGEMM (Single Precision General Matrix Multiplication) which is a standard library function for Matrix Multiplication.

OpenGenus Tech Review Team OpenGenus Tech Review Team
Linux

sleep command in Linux

The sleep command delays execution of shell scripts and commands for a specified. This could be minutes, seconds, hours or even days. In this article we learn about this command through various examples.

Erick Lumunge
Linux

wait command in Linux

In Linux, we use the wait command to wait for a process to terminate then print its exit status. This is very useful in cases where the exit status of a predecessor command determines the execution of the following command. In this article, we learn about this command through various examples.

Erick Lumunge
Linux

expr command in Linux

In Linux, the expr command evaluates an expression passed to it and returns the corresponding value. We usually use it for basic arithmetic such as addition, subtraction, modulo operations, division, multiplication. We also use expr command to evaluate expressions.

Erick Lumunge
Linux

locate command in Linux

We use the locate command to find files in Linux, unlike the find command that searches the entire file system, this command uses a local database to search for the file passed as an argument.

Erick Lumunge
Software Engineering

DevOps vs DevSecOps

Both DevOps and DevSecOps are related. In this article, we have explored the things in common and the differences in DevOps and DevSecOps.

Benjamin QoChuk, PhD Benjamin QoChuk, PhD
Python

Sending file/ attachment in Gmail using Python

In this article, we have explained the idea of using Python to send file/ attachment in Gmail with a complete Python implementation example.

CHEW Chee Keng
System Design

How to avoid S3 data leaks?

What could be more frustrating than having your sensitive data leak out to the public? Unfortunately, this is a reality for many companies that use S3 buckets. Lately, I have seen an uptick in companies that have experienced data leaks due to insecure S3 buckets.

Benjamin QoChuk, PhD Benjamin QoChuk, PhD
Python

Python script to scroll on a webpage

In this article, we will develop a Python script to scroll on a webpage and stimulate real usage behavior. We will use Selenium and ChromeDriver.

Jiehui Ma Jiehui Ma
Python

Python Script to Open Webpage and Login

In this article, we will be going over all the steps to prepare you to be able to open a webpage and log in using Python and some third-party applications.

Dylan Shukster Dylan Shukster
System Design

System Design of Spotify

In this article, we have explained the System Design of Spotify, a leading audio streaming platform in depth.

Alan Chacko
C++

Null and void in C and C++

In C and C++ Programming language, NULL and void have two distinct meanings and use cases like NULL reference, void pointer and much more. We have explored this in depth.

Gabriel
List of Mathematical Algorithms

Convert Decimal to Hexadecimal

In this article, we will learn about decimal numbers, hexadecimal numbers and the algorithm to convert decimal to hexadecimal number.

Gifty Treesa Iju Gifty Treesa Iju
System Design

System Design of Microsoft Teams

In this article, we will look at the high-level system design of Microsoft Teams, its architecture, and how it works.

Ben Meehan
Linux

read command in Linux

We use the read command to read from standard input or file descriptors. In this article, we learn to use the read command to get input from a user using a prompt, hiding input, limiting input, read command variables, arrays, timeouts, IFS, and more.

Erick Lumunge
Linux

wall command in Linux

Linux is a multi-user system and as such there are occasions as system administrators we want to send a message to all logged in users seamlessly, in this case we use the wall command.

Erick Lumunge
linked list

Linked List Interview Questions [with answers]

This is the list of Interview Questions based on Linked List Data Structure. You must practice these Multiple Choice Questions. This will help you master Linked List Coding Questions for Interviews at companies like Google and Microsoft.

Aditya Chatterjee Aditya Chatterjee
Machine Learning (ML)

Questions on Convolution operation in ML

In this article, we have presented several Interview Questions (MCQs) with detailed answers on Convolution in Machine Learning models.

OpenGenus Tech Review Team OpenGenus Tech Review Team
Linux

Here documents in Linux

A here document is a special code block with multi-line strings that can be redirected to the command script or interactive program. In this article, we learn about here documents in Linux.

Erick Lumunge
Perl Programming

Perl Programming: Files, Regex, Subroutines, OOP

Perl is a general-purpose programming language with many applications. We look at Perl programming aspects such as files, regex, subroutines, and Perl OOP.

Erick Lumunge
Python

Python script to send email in Gmail

In this article, we have explained the idea of using Python to send email in Gmail with a complete Python implementation example.

CHEW Chee Keng
Perl Programming

Introduction to Perl Programming

Perl is a general-purpose programming language applicable to many areas such as, systems administration and network programming just to name a few. In this article we go over a brief introduction into Perl looking at its syntax, variables, scoping, loops and statements.

Erick Lumunge
Linux

Finger command in Linux

The finger command is used to get all information about system users. With it, we get information such as login name, user name, login time, idle time and much more. We look at commonly used finger commands in Linux.

Erick Lumunge
C++

Sort Map in C++ STL

In this article, we have explained different ways to sort a Map in C++ STL using C++ code snippets.

kartikeya
computational geometry

Halfplane Intersection problem

In this article, we will be discussing how to compute the intersection of a set of halfplanes.

Joe Gorst Joe Gorst
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