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Plus Perfect Numbers are a class of very interesting numbers in the ‘Recreational Number Theory’. They are also called narcissistic numbers or Armstrong numbers. Plus perfect number is the number that is equal to the sum of its digits each raised to the power of the length of the number. 153, 1634, 370, 371 are some of the plus perfect numbers. We can easily check and calculate Plus perfect Numbers or Armstrong numbers in Fortran90.
‘Performance’ can be a crucial factor to determine how successful a site is. And now, Word Press is becoming more and more popular with the passage of days. Sometimes, due to high traffic conditions or any other hidden issues, Word Press does not function properly and so the need to optimize it is generated.
The reason to switch to Nginx from Apache is very obvious and that is based on performance. Nginx can handle a lot of traffic as compared to Apache without requiring spending much on hardware. The question arises, as to why is Nginx so fast when compared to Apache? Nginx is an architecture based on non blocking event. Apache, on the other hand, is an architecture based on blocking process.
If you’re programming in C++, classes are a really useful thing, and you’re probably going to use them a lot. So what exactly are classes? In this article, we are going to take a look at what classes are, what they are used for, and how they work.
If you have any prior knowledge of C++, or practically any other programming language, you probably already know what a function is. In this article, we’re going to talk about basic functions, and how to create your own custom functions with or without parameters in the C++ programming language.
This article handles about loops in C++. When you’re programming in C++, you sometimes want to have a block of code run multiple times. Instead of typing it over and over again, and making your code very complicated, you can use a loop. There are many ways to use loops, and we’re going to go over two of them: the for loop and the while loop.
This is part five of the tutorial series on basic programming in C++. In this tutorial, we take a look at if statements, what they are for, how they work and how they are built. We also cover different kinds of tests, like greater or smaller than, and equals or not equal to.
I n this article you will find detail of some important keyboard shortcut keys. Use following keyboard shortcuts instead of mouse and save your valuable time. Keyboard shortcut keys not only save your time but also you can make your task and work easy. Getting familiar with keyboard shortcuts not only help you get the work done faster, but also more efficient.
This is part four of the tutorial series on programming with C++. In this part, we use the calculator project that we created in the last part, to look at what happens if you perform math operations between ints and floats, and what happens if you try to store an integer value in a float variable.
This is part three of my tutorial series on how to program in C++. In this tutorial, we’re going to build on what we saw in the last tutorial. We revise the very basics of cout, we introduce cin, and using our knowledge of cout and cin, we create a very basic console calculator.
This is the second part of my tutorial series on programming in C++. If you haven't already, please read the first part before this one. In this tutorial, we'll be covering some of the details about printing text to the console and managing in which line it's printed, and basic variables, how they are made, and basic variable types.
This is the beginning of a tutorial series on learning C++. C++ is a very popular programming language in normal programs, as well as in games. In part 1, we'll be installing CodeBlocks, an IDE where we'll be writing our code, and we're going to take a closer look at the included "HelloWorld" project.
A scroll bar is typically used to increase or decrease a value such as when we want to change the color setting of our computer’s monitor through the Control Panel’s Display object or to increase or decrease the volume of our computer’s digital audio speaker. The scroll bar acts as a sliding scale with a starting point and ending point, including the values in between.
C++ is a language that was created to counter the disadvantages of C. Though C has many advantages, it couldn't prevent data loss. There was a necessity for a language that would incorporate the advantages of C but eliminate its disadvantages. Thus, C++ was born. Even though C++ is just an improvement of C, there are many concepts that are totally new and would make learning C++ very interesting.
Computer programming is an area that can have three major types of errors that can happen. One is known as syntax, which is common when starting out. There is also the runtime error, which can cause a program to terminate unexpectedly if an exception is not thrown. The final one is known as a logic error and can be a bit difficult to catch but not always. Learn a bit about them with examples of how they could happen.
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