Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
The 80−20 rule is quite a common concept in the business world, and it's often used to describe a process.This can be applied to your daily life as well! Keep reading to learn more about how the 80/ 20 rule can help improve your business productivity! What is the rule? The Pareto principle, also known as the 80−20 rule, is a business management rule that states that 80% of a company's results come from 20% of its activities. In other words, 80% of a company's sales come from 20% of its customers, or 80% of its profits come from 20% ... Read More
The 52−week range is an indicator that your investments are not in a safe place. The purpose of this article is to explain what 52−week range is and how it is calculated. What is the 52-week range? The 52−week range is the difference between the highest and lowest prices that a stock has traded at in the past 52 weeks. This range gives investors an idea of how volatile a stock is and how much price movement to expect in a given year. A stock that trades within a small range is considered to be less volatile than one that ... Read More
When it comes to stocks, there are a lot of different terms and metrics that can be confusing for newcomers. One of these is the 52−week high and low. In this article, we'll explain what this metric means and how it can be useful for investors. What is a 52−week high? A 52−week high is the highest price that a stock has traded at in the last 52 weeks. This is a good indicator of how well a company is doing and can be used to make investment decisions. In other words, A 52−week high is a measure of the ... Read More
If you're like most people, you don't really understand what a 51% attack is. After all, it's not something that you or your average person experiences on a daily basis. In this article, you will explore what is 51% attack and how much would it cost. What is a 51% attack? A 51% attack is a potential attack on a blockchain−usually Bitcoin's, Greencoin's or Ethereum's−where an organization or individual gains control of more than 50% of the network's mining power or computational power. With this much control, they could theoretically − Reverse or modify transactions Prevent new transactions from ... Read More
401 K plans are retirement savings accounts that are offered by employers, typically ()in the United States. This article is a basic introduction to 401 ks and how they work, with sections on what they can be used for and who they're available to. It allows you to set aside money for your future. The money that you contribute to your 401k plan is deducted from your paycheck before taxes are taken out. This means that you will pay less in taxes now, and you will have more money saved for retirement. Your 401k plan will also offer you ... Read More
The 0x protocol is a decentralized exchange that allows for the buying and selling of Ethereum−based tokens. The article goes into detail about how this process works as well as how it benefits individuals who are looking to invest in cryptocurrency. What is 0x? 0x is an open−source protocol that enables the peer−to−peer exchange of assets on the Ethereum blockchain. The protocol is designed to be modular and extensible, and it features a decentralized exchange that is powered by smart contracts. 0x is free to use and it does not require a central authority. The protocol can be used to ... Read More
A shielded transaction is a type of cryptocurrency transaction that uses Zcash's zk−SNARK protocol to keep the sender, receiver, and transaction amount private. This article will explain how shielded transactions work and why they are useful. What is a shielded transaction? When it comes to cryptocurrency transactions, there are two main types − unshielded and shielded. Unshielded transactions are the more common of the two, and they work just like regular fiat currency transactions. Shielded transactions, on the other hand, offer more privacy and security. However, shielded transactions come with a few trade−offs. First, they're much more complicated to set ... Read More
In the traditional web development model, a single server hosts all of the resources that an application needs to function. However, this model has a number of drawbacks, which have led to the development of decentralized APIs. In this article, we'll take a look at what decentralized APIs are and how they can be used to improve the web development process. What is an API? An API is an interface that allows two pieces of software to communicate with each other. It is a set of rules that govern how data is exchanged between the two systems. An API can ... Read More
We apply the cv2.grabCut() method to extract the foreground in an image. For detailed approach please follow the steps given below − Import the required libraries OpenCV and NumPy. Make sure you have already installed them Read the input image using cv2.imread() method. Specify the full image path. Define the variables: mask, bgdModel and fgdModel. Define the coordinates of a rectangle "rect" which includes the foreground object in the format (x, y, w, h). The correct coordinates are very important to extract the meaningful foreground. Apply grabCut() algorithm to extract the foreground of the input image. Pass mask, ... Read More
We apply cv2.dct() to find the discrete cosine transform of an image. This function transforms the grayscale image of dtype float32. It accepts two types of flag cv2.DCT_INVERSE or cv2.DCT_ROWS. To convert the transformed image to the original image we use cv2.idct(). Steps To find discrete cosine transform of an input image, you could follow the steps given below − Import the required libraries OpenCV and NumPy. Make sure you have already installed them. Read the input image using cv2.imread() method. Specify the full path of the image. Convert the input image to grayscale image using cv2.cvtColor() metod. Convert ... Read More