Math math

Multiplication Tips »

Multiplying by five Jenny Logwood writes: Here is an easy way to find an answer to a 5 times question.If you are multiplying 5 times an even number: halve the…

29 Sep 2009 / 2 Comments / Read More »
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Multiplying a two-digit number by 11 »

For instance, suppose you wanted to multiple 43 x 11. Well, you may be able to solve this problem in your head already if you realize that you can first…

6 Sep 2009 / 3 Comments / Read More »
Programming

How to swap the content of two variables without using an intermediate storage location? »

swp

Traditionally most programmers use an extra variable when it’s come to swap the content of two variable. well, some programmers…

20 Apr 2011 / 5 Comments / Read More »

Fastest Algorithm to Find Greatest Common Divisor »

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In mathematics, the greatest common divisor (gcd), also known as highest common factor, of two or more non-zero integers, is…

29 Nov 2010 / No Comment / Read More »

Advantage of new[] over malloc() »

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If you are a C programmer and just turning to C++, you may be wondering what was wrong with my…

17 Nov 2010 / No Comment / Read More »

Fastest Algorithm to generate primes in c/c++ – Sieve of Eratosthenes »

project euler problem 7

In mathematics, the Sieve of Eratosthenes is a simple, ancient algorithm for finding all prime numbers up to a specified…

26 Oct 2010 / 2 Comments / Read More »
Computers & Technology

YouTube videos taking too long to load? Did you know that you can play “snake” while you wait? »

youtube_snake

If you get bored while waiting for some of YouTube videos to load, press any of the arrow buttons (it is better to use the up and down arrows because right and left arrows causes the video to forward and backward) and a game of…

31 Jul 2010 / 2 Comments / Read More »

Test Your Anti-virus Program »

testantvirus

Do have an anti-virus program. How can you test that it works? This is a good question and it is wise to familiarize yourself with how your anti-virus software behaves when it detects a virus, before it really happens. One quick way to do this…

19 Feb 2010 / 4 Comments / Read More »

Fix downloading HTML or PHP files instead of the actual files »

angry_at_computer

I’ve seen many people asking for help regarding this issue. I’ve been using Rapidshare, MegaUpload and others for years – and have assisted a lot of people on this issue. I felt that instead of having to assist each person again, I could simply direct…

18 Feb 2010 / No Comment / Read More »
Puzzles

[Challenge Geometric Puzzle #3] Four identical matchsticks squares »

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Move two matchsticks to make only four identical squares. Show Answer ▼…

28 Feb 2010 / No Comment / Read More »

[Challenge Geometric Puzzle #2] Max Parts – Using 4 Lines »

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How to get max divisions (parts) using 4 lines in the following rectangular? Show Hint ▼ The max number is 11 Parts Show Answer ▼…

21 Feb 2010 / No Comment / Read More »

[Challenge Geometric Puzzle #1] Four Equal Shapes »

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Divide the following shape into4 parts have the same shapes and the same areas Use the inner area to work not the outer one Show…

14 Feb 2010 / No Comment / Read More »
Blogger blog-statistics

Blog Statistics Widget for Blogger

Blog Statistics Widget shows the number of all posts and comments of your blog which you may find it very useful one for your blog Go to Layout -> Page Elements Add Gadget -> HTML and…

6 Sep 2009 / Read More »
Beat the Calculator math

Multiplication Tips

Multiplying by five Jenny Logwood writes: Here is an easy way to find an answer to a 5 times question.If you are multiplying 5 times an even number: halve the number you are multiplying by and…

29 Sep 2009 / Read More »
Programming Tips swp

How to swap the content of two variables without using an intermediate storage location?

Traditionally most programmers use an extra variable when it’s come to swap the content of two variable. well, some programmers believe that there are no other ways to swap two variables with out using another temporary…

20 Apr 2011 / Read More »
Optimization Techniques c0026487_48c2724d61023

Fastest Algorithm to Find Greatest Common Divisor

In mathematics, the greatest common divisor (gcd), also known as highest common factor, of two or more non-zero integers, is the largest positive integer that divides the numbers without a remainder. For example, the GCD of…

29 Nov 2010 / Read More »

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