Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Welcome back, my eager hackers! In recent blogs, I've demonstrated how to grab password hashes remotely using Metasploit's meterpreter and pwdump. Once we have the Windows passwords from the SAM file, we can then crack these hashes using tools such as Cain and Abel.

In this tutorial the instructor shows how to calculate the sum of reciprocals of complex numbers. If you have to find out the sum of the reciprocals of two complex numbers first you will have to find out the least common multiple of the denominators. To do this multiply the numerator and denominator of the first fraction by the second complex number. Similarly multiply the numerator and denominator of the second fraction by the first complex number. Now you will have two fractions whose denom...

Faced with a tricky polynomial multiplication problem? Need some help figuring out how to solve it? See how it's done with this five-part free video algebra lesson. 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).

Being circuitous and using ample euphemisms has gotten many a politan elected by the dumb and hated by the knowing. Though embellishing speech is often preferred in jovial presidential debates, mathematicians prefer to cut out the fat and get straight to the point.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

In this video tutorial the author shows how to find the perimeter and area of a complex figure. He shows that a complex figure can be subdivided into standard geometric figures. In the current example he divides the complex figure into a rectangle and a triangle. Now he computes the perimeter by adding the three sides of the rectangle and the two sides of the triangle. Similarly he computes the individual areas of the rectangle and the triangle and finally adds then up to find the area of the...

When it comes to passwords, the longer and more complex they are, the better the security. Even professional hackers say so. But if you've ever tried to type in such a password, you've surely noticed that it can be a bit of a pain. Mistype one character, and you're probably going to have to clear the field and start all over again.

Welcome back, my apprentice hackers! In this series on password cracking, I have been attempting to develop your skills in the age-old art of password cracking. Although it might seem like a simple and straightforward exercise, those of you who have attempted password cracking know that there are many subtleties to this art.

This series on complex numbers will help you solve equations with the cute variable "i" with ease by multiplying by the conjugate.

This video tutorial from iDeviceTutz shows how to change the SSH root password for iPhone or iPod.When iPhone or iPod is jailbroken it sets its password to default - alpine.Thus your device becomes vulnerable from a network attack that could steal your information or identity. So you need to change your password as soon as possible when your device is jailbroken.For this you'll need Mobile Terminal program on your device and SSH client (Cyberduck or WinSCP) on your computer.First download and...

In this tutorial the author explains how to compute the area of a complex figure. Now he first defines what a complex figure is by saying that a complex figure is a figure made up of two or more basic shapes. He uses an example to convey his idea and breaks that sample figure into basic squares and rectangles. Now he computes the areas of these individual units separately and finally puts them together to arrive at the final area of the complex figure. If you are looking to compute the area o...

What's the easiest way to keep track of your website passwords? Maybe in a password-protected document on your computer? Makes sense.

Want to hack a LAN? Well, hacking local area networks is easier than you'd think. And by watching a few short videos, you can become a master hacker, something every techie wants to achieve. And what's the best way to hack a LAN? Ettercap, a password sniffing program.

How To Filet Crochet - Part 1 We we first heard the term "filet crochet," an image popped up in our minds of chicken fillets from McDonald's, only made from crochet yarn (yes, we were also quite hungry at the time). Well, we'll have to save the yarn foods for another time, because a filet crochet is actually a very complex, difficult crocheting pattern that requires a graph in order to get the stitches right.

In this tutorial, we learn how to use salty hashes to keep passwords secure. A hash is stored in a database that is hashed with an algorithm, so not everyone can see exactly what your password is. When you type your password into a website, it doesn't actually register as words, it registers as a hash. This keeps your passwords secure so not everyone can see them. Salting is when you use random pits and attaching them to your regular hashes so not every password is the same. The salt is what ...

The powers of the complex number "i" run their course in a cyclical nature, like annual seasons of "American Idol." Simplify your life - or at least your math class life - by learning how to rewrite the powers of "i" into simple, single variable expressions.

Math has always had the reputation of being nonimaginative, dry, and straight to the point, but mathematicians like to have fun, too! Perhaps that's why they invented imaginary complex numbers dealing with "i."

In this video the instructor shows how to simplify a complex fraction. A complex fraction is a fraction that has fractions in both the numerator and the denominator of the original fraction. Complex fractions can look intimidating but are generally simple to solve, as shown in this video. A fraction is nothing but a division of its numerator and its denominator. So in a complex fraction basically you are dividing two fractions. Now you can turn this division into multiplication by multiplying...

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People who know that I am a professional hacker often ask me what they can do to make their computers and personal information safe from people like me. The answer, of course, is that nothing will make you completely safe, but there are a number of measures any computer user can take to reduce the chances of being a victim of a hacker.

The 'Kervorkian Complex' achievement is only accessible while playing the Acquaintances Forgotten side quest in Deus Ex: Human Revolution on the Xbox 360. During the dialogue options, you'll need to continue to agree with Brent Radford until he allows you to kill him with morphine--at this point the achievement will unlock.

Start a complex animation that only has a few keyframes by using precomping! This is a simple yet powerful technique that can really open up your ability to get the most out of creating fun animations using Adobe After Effects.

Whether you're new to Adobe InDesign or a seasoned graphic arts professional after a general overview of CS5's most vital new features, you're sure to be well served by this official video tutorial from the folks at Adobe TV. In it, you'll learn how to build complex layouts in less clicks with paragraphs that span or split columns in InDesign CS5.

We don't know about you, but making selections around oddly shaped areas of an image is one of the most frustrating single tasks in Photoshop. Odd shapes are really hard to navigate around by hand and often you can't get a perfect cut. Luckily, this Photoshop tutorial will guide you through how to make complex selections easily in Adobe Photoshop CS5.

While basic origami allows for the usage of only one sheet of paper, modular origami increases up to many sheets of paper allowing for increasingly complex shapes. This video tutorial shows how to use the Japanese art of modular origami to create a dodecahedron. Start watching and start folding!

A complex number is half real (a) and half imaginary (bi), just like that Edward Cullen who makes your heart thump realistically but whose sparkly chest makes you wonder if he's something more.

In this how-to video, you will learn how to change the password to your hotmail e-mail account. This will be useful if someone knows your password or it is not unique enough to be safe. First, go to your web browser and log in to your hotmail account. Once you are in, go to the options bar and click more options. Next, go to view and edit your personal information. Click on change next to your password. Enter your old password and then enter your new password twice. Click save to change the p...

Life on the Internet is made up of passwords. You have a password for your Facebook, a password for your email, a password or your online banking - And the list goes on. In this video, learn how to create good passwords that are easy to remember.

Afraid you're going to forget the password to something important? Well worry no more. Blackberry expert Darci Larocque shows how to keep those passwords in a safe place in the unfortunate event that you manage to forget your passwords like your visa number or your passport number. All you need is your blackberry and a little program called password keeper. Open up password keeper and it will ask you for a password twice initially but only once in subsequent uses and that is all there is to i...

In order to secure a PDF with a password when opened in Adobe Acrobat 9 Pro, press the secure button and go into password security settings. Here you can change on what versions of this software the file will run on, the next option asks which portion of the document is to be encrypted when a password is placed. Further below here is where you actually choose the password, this ensures that only people who know the password will be able to see the contents of the document. Below this is the d...

Most of us have never put much thought into this, but the question needs to be asked — what exactly happens to all of our online accounts when we die? No, the internet won't just know and delete accounts for you, so you need to plan for life's one guarantee. Because without a plan, things become a lot harder to sort out.

The true test of good technical drawing is being able to handle multiple vanishing points and levels of ground at the same time. So rather than just creating a scene on the same uniform plane, you add additional height and width with complex levels.