Mathematics       

Here x 2 > 0 for all real numbers x. Therefore the equation  x 2 = b only has solutions x when b > 0, that is only when b is non-negative.  Defining
b½ =sqrt(b)
as the nonnegative real solution of  x 2 = b works only  if b is positive. …

 Mathematics       

Now (a x)y = exp(y ln(a x )) =   exp(y x ln(a )) =  a yx = a xy Therefore
(a x)y =  a xy (Exponential of an exponential)
Now a xay =  exp(x ln(a)) · exp(y ln(a) = exp(x ln(a)+y ln(a)) = exp( (x +y )ln(a) ) = a x+y Therefore  …

 Mathematics       

For x = m/n and a > 0,  a x = a m/n = exp( (m/n) ln(a)) = exp( x ln(a)). This suggests putting a x = exp( x ln(a)) for x irrational.  Then
a x = exp( x ln(a)) for all real x for a > …

 Mathematics       

today I was preparing myself for the math exam that I have for the next week
I learned the exponentional exp(x) and logarithms ln(x) functions
Uniqueness (or 1 to 1) Property:
If a > 0, b> 0 and  ln(a) = ln(b) then a = b..
Inversion Properties

ln(exp(x)) = x for all real x
exp(ln(x)) = …

 seo       

Monday, September 21, 2009 at 10:00 AM
Recently we received some questions about how Google uses (or more accurately, doesn’t use) the “keywords” meta tag in ranking web search results. Suppose you have two website owners, Alice and Bob. Alice runs a company called AliceCo and Bob runs BobCo. One day …

 seo       

for every one think of seo is some what being in the first result of the google’s result page but it is a litle complicated than that
step1:  is targeting your audiences
step2: optimize your website for keywords your audiences will use frequently
step2: track your websites progress and make adjustments as necessary
so …

 seo       

The Google Webmaster Tools dashboard has graphs indicating the activity of Google spiders on your websites. You get to know the number of pages that were crawled by Googlebots per day and some other details.
To see such graphs for your own website, open Google Webmaster Tools, go to Tools and …

 joomla       

but now I find a temporary fix for it and I publish it here for use of other member
After clean install of joomla and virtuemart, if you switch the language to a RTL language all tabs on virtuemart forms will disappear.
( tab in the entrance page “control panel|statistics”, new product …

 Windows Vista       

Additional Details
found it…. here it goes
In Windows Vista, the new location of the log files have been moved to the user’s AppData directory:
C:\Users\Woshka\AppData\Local\VirtualStore\Program Files (x86)\Yahoo!\Messenger\Profiles
C:\Users\<windows_usrnme>\AppData\Loca… Files\Yahoo!\Messenger\Profiles\<yahoo_u…
C:\Users\<windows_usrnme>\AppData\Loca… Files (x86)\Yahoo!\Messenger\Profiles\<yahoo_u… (for x86 version of Windows)
in some caees the profile was in C:\Program Files (x86)\yahoo
Accessing this folder is another story, however. From my …

 seo       

Google Caffeine is the name given to Google’s “Next Generation” search engine, which it will use to rank and index all the pages on the wonderful world wide web. According to all indications, this is not just another one of Google’s infamous Updates, but a major “Overhaul” of its index …