Arbitrary Search Results

How To: Use imaginary numbers in intermediate algebra

Learn how to work with i, the imaginary square root of negative 1, in intermediate algebra. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn ...

How To: 15 Important Features and Changes in the iOS 15.5 and iPadOS 15.5 Updates

Apple's latest iPhone and iPad software, iOS 15.5 and iPadOS 15.5, became available on May 16, so you can download and install it right now if you haven't already. While there aren't as many new features as iOS 15.4 and iPadOS 15.4 had, there are a few big ones in the U.S. you'll want to know beyond Apple's minuscule "About this Update" information in the "Software Update" menu.

How To: Graph linear equations with a table of values

The author teaches us how to graph the linear equations with tables. Given a set of linear equations in terms of "x and y", first we have to draw a table having a column each for x and y. We have to enter an arbitrary value of x in that table and substitute that value in the given equation to get the corresponding y value. Once you obtain both x and y values, the next step is to plot them in a graph. Consider an example: in the linear equation x=2y,on substituting an arbitrary value of x=2,we...

How To: Straighten your photos using Photoshop CS4

In this how-to video, you will learn how to straighten crooked photos in Photoshop. First, open the photo you want to straighten in Photoshop. Next, use the ruler tool under the eye dropper tool. Select it and zoom in to an area. Find a crooked line to straighten, such as a building rooftop or ground line of some sort. Click, hold, and drag. Next, zoom out. Go to image, image rotation, and arbitrary. Click okay and your image will be adjusted. Go to the crop tool and crop out the spaces. Hit ...

How To: Map text files with MapForce

MapForce supports flat files as the source and/or target of any mapping involving XML, database, EDI, web services or other flat file data. In this how-to, you'll find instructions for mapping data from arbitrary text files (such as log files, CSV, fixed-width, and other legacy data sources) to databases and XML files.

News: Apple's iOS 12.4.1 for iPhone Fixes Jailbreak Vulnerability, 12.4.2 Patches Other Security Issue

While all eyes might be on the next beta release for iOS 13, Apple is still pumping out updates for iOS 12. The company released iOS 12.4.1, the first update since iOS 12.4, on Aug. 26. The latest update includes a patch for the jailbreak vulnerability recently discovered in 12.4. One month later, on Sept. 26, iOS 12.4.2 came out for older iPhone models.

How To: Exploit Shellshock on a Web Server Using Metasploit

One of the most critical bugs to come out in the last five years was Shellshock, a vulnerability which allows attackers to execute arbitrary code via the Unix Bash shell remotely. This vulnerability has been around for a while now, but due to the ubiquity of Unix machines connected to the web, Shellshock is still a very real threat, especially for unpatched systems.

How To: Leverage a Directory Traversal Vulnerability into Code Execution

Directory traversal, or path traversal, is an HTTP attack which allows attackers to access restricted directories by using the ../ characters to backtrack into files or directories outside the root folder. If a web app is vulnerable to this, an attacker can potentially access restricted files that contain info about all registered users on the system, their permissions, and encrypted passwords.

How To: Protect Your Identity After the Equifax Cyberattack

Equifax reported on Sept. 7 that it discovered a breach on July 29 which affects roughly half of Americans, many of whom don't realize they have dealings with the company. Hackers got away with social security numbers, addresses, and driver's license numbers, foreshadowing a "nuclear explosion of identity theft." Let's explore what really happened and what you and those around you can do to protect yourselves.

Prev Page