Salient Functions Search Results

How To: Program a $6 NodeMCU to Detect Wi-Fi Jamming Attacks in the Arduino IDE

Hackers and makers are often grouped under the same label. While hackers draw on computer science skills to write programs and find bugs, makers use electrical engineering to create hardware prototypes from microprocessor boards like the Arduino. We'll exercise both sets of skills to program a $6 NodeMCU to display the status of a Wi-Fi link via an LED, allowing us to monitor for jamming attacks.

News: Hino Motors Leads the Way to Japan's Planned 2020 Rollout of Commercial Truck Platooning

Japan is in the process of curbing its aging population and mature workforce. According to The Diplomat, the country's population has been declining at a steady rate. To meet future productivity demands in commercial and industrial sectors, local officials are turning to self-driving technology, including truck platooning, where three or five vehicles travel autonomously in a string formation. This practice, according to a study by MIT, can reduce fuel consumption by up to 20% (more about thi...

How To: Security-Oriented C Tutorial 0x21 - Linked Lists

Welcome to the final tutorial of the series on standard C. This article will cover the linked list abstract data type (ADT). There will be a lot of abstraction to try to deliver the understanding in the most basic way for easiest interpretation of what they are and how they work, then we will get into the guts of it and learn the technical code underneath. For those who have yet to grasp the concept of pointers, it's advisable that you do that first before approaching this. Having learned thi...

How To: Build a Stealth Port Scanner with Scapy and Python

As we're all aware, recon is vital to a successful hack. We need to know everything we can about the target in order to perform the best possible attack. Port scanning is a basic recon concept that is introduced very early in learning proper reconnoissance. The issue with port scanning is that is makes a lot of noise. Every connection to every port will be logged. This is where stealth scanning comes in. Also known as SYN or half-open scanning, stealth port scanning is a bit quieter, and is l...

How To: Fix a Huge Dent in Your Car at Home Without Ruining the Paint Job

There are two options when it comes to a dent in your car — live with it, cringing each time it enters your view, or get rid of it. While the latter is obviously the best option, most of us will probably just live with dents and dings since spare money is better spent on the actual functionality of the vehicle. However, there is a way to knock out automobile dents yourself with relatively little cash in the bank.

How To: Make payment calculations with MS Excel's PMT function

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 47th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the PMT function to calculate payments. Specifically, this video addresses the following topics:

How To: Use the INDEX & MATCH functions in Microsoft Excel

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 45th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the INDEX & MATCH functions.

How To: Remember the parts of the cell

Are you much for science? Cytoplasm. Nucleus. Endoplasmic reticulum. Organelle. These words might sound alien, but breaking down the parts of a cell and their functions will help you remember. This is one of the best ways for cell identification, and it's perfect for science class studying.

How To: Automatically color alternating rows in Excel

This video is a tutorial on using the Conditional Formatting function of Excel to automatically color alternating rows, which helps your eye to follow across the row. This can be done manually with the “Fill Color” button, but if you add or delete rows after applying the shading, the whole purpose is defeated.

How To: Approximate the area under a curve using rectangles

The idea of finding the area under a curve is an important fundamental concept in calculus. Consider a function y = f(x). Now the area under the curve is to be calculated. The area under a curve problem is stated as 'Let f(x) be non negative on [a, b]. Find the area of the region lying beneath the curve y = f(x) and above the x-axes, from x = a to x = b. Note that finding the area under a curve will imply that you are dealing with a non negative function. The way to approach is to divide the ...

How To: Find the antiderivative of a function

This video shows you how to find the antiderivative of a function. By definition, the F(x) is an antiderivative of f(x) means F’(x) = f(x). The small f is a derivative of the capital F, and the capital F is an antiderivative of the small f.

How To: Calculate variance and standard deviation using Excel

This video shows the method to find the variance and standard deviation using Excel. The variance shows the variability of the data points from the median. We find the difference of the median and the mean. We write the formula using '=' sign. The median and data points are put in it by selecting the appropriate cell. The median is made an absolute constant by pressing the F4 key. This is squared by using '^2'. This is multiplied to the frequency using '*'. The result is found for all the dat...

How To: Fire up your metabolism

This video focuses on strategies you can use to boost your metabolism--one-step needed in order to lose belly fat. Obtaining a faster metabolism will train your body to burn more calories throughout the day. The first step to boost your metabolism is through strength training, which means developing leaner muscle mass. This will result in long-term investment for caloric burning. The second step involves exercising in the morning; this will help you burn calories more easily throughout the da...

How To: Create dynamic menus with JavaScript

1. The following steps describes how to Create dynamic menus with html and Javascript. 2. Open the html file in Illustrator. 3. Enter the Menu.js file with <Script> Tag. 4. Create a Bulleted List of the Menus and Its Sub Menus inside a DIV Tag. 5. For Each UI List Create a Mouse over and mouse out Event for Header Menus. 6. For Mouse over Event call a Function named set Menu with MenuSubOne id as parameters 7. For Mouse out Event call a Function named named clearMenu with MenuSubOne id as par...

How To: Use a Hydroponic Seed Starter to produce seedlings

Learn how to make and use a hydroponic seed starter to produce seedlings with this video tutorial. This is a very easy setup to make. Start with a basic metal shelving unit. Hang florescent lights above each of the shelves on the shelving unit. Make sure the lights are balanced for day time. Put a plastic container on each shelf that is about the size of the shelf and tall enough for the rim to sit just below the florescent light tubes. You will need some pecks tubing and some plastic clamps....

How To: Change the back cover on your iPhone 4

iPhones and the entire Apple i-line are incredibly gorgeous. Streamlined, minimalist, and futuristic, they're the epitome of both form and function. But we've always had a bit of a problem with the fact that it seems like every other person walking down the street has the SAME EXACT model as us. Doesn't exactly make us feel unique, you know?

How To: Sort files into folders using Automator on Mac OS X

With OS X, you can use Automator to automate several functions. This nifty little how-to by macmost shows you how to sort files into sub-folders using Automator. You can use Automator to alter what happens when a file is added to a folder. In this example, new files added to a folder are then sorted into subfolders according to their type. You can add multiple actions to a folder and then determine which order they are used.

How To: Create a Guy Fawkes / V for Vendetta mask with makeup

Guy Fawkes Day is one of the biggest holidays in the UK, functioning as sort of a combination of the 4th of July and Halloween. One of it's distinctive elements is traditional masks like the one Guy Fawkes supposedly wore (also worn by V in V For Vendetta). If you want to get into the spirit of the holiday for Halloween or actual Guy Fawkes Day (Nov. 5), watch this video to learn how to apply a sexy Guy Fawkes mask makeup look.

How To: Adjust the mirrors in a 2010 Toyota Prius

In this tutorial, we learn how to adjust the mirrors in a 2010 Prius. The interior rear view mirror will dim automatically if it sense a glare coming into it. You can turn this function on and off by pressing the buttons on the mirror. There are also outside mirrors that have controls to the left of the steering wheel. Press the buttons to adjust the area the lens is at. There is also a defroster that will activate when you turn on the front or rear defroster. This will loosen any ice from th...

How To: Combine two or more frames in Adobe Photoshop CS5

Need some help figuring out how to join multiple frames in Adobe Photoshop CS5? It's easy. And this clip will show you precisely how it's done. Whether you're new to Adobe's popular raster graphics editor or a seasoned designer looking to better acquaint yourself with the new features and functions of the latest iteration of the application, you're sure to benefit from this free software tutorial. For more information, and to get started combining frames yourself, watch this video guide.

How To: Make selections with the Magnetic Lasso tool in Adobe Photoshop CS5

Want to know how to make precise selections with the Magnetic Lasso tool in Adobe Photoshop CS5? It's easy. And this clip will show you precisely how it's done. Whether you're new to Adobe's popular raster graphics editor or a seasoned designer looking to better acquaint yourself with the new features and functions of the latest iteration of the application, you're sure to benefit from this free software tutorial. For more information, watch this video guide.