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Wednesday, February 25, 2009
Monday, January 14, 2008
Saturday, December 1, 2007
Mathematics - A view or Definition
Mathematics can be viewed as 'A process of symbol manipulation subject to certain rules (called) axioms' according to E.Post and A.A.Markov.
A theorem is nothing but a string of symbols in a well-defined alphabet set.
The operations used in such a symbol manipulation are concatenation, replacement and matching.
Everything originated from Mathematics only.
According to Thirukural (the sacred text of Tamil,Indian book), the numbers and the letters are the eyes of an human.
Any language whether English or Tamil can be learnt through Mathematics.
A language has an alphabet, a set of axioms (which are fixed strings made from the character set A) and some inference rules (called productions).
So a child should learn mathematics first. Then it could learn any language through mathematics. BE A MAD PERSON !
A theorem is nothing but a string of symbols in a well-defined alphabet set.
The operations used in such a symbol manipulation are concatenation, replacement and matching.
Everything originated from Mathematics only.
According to Thirukural (the sacred text of Tamil,Indian book), the numbers and the letters are the eyes of an human.
Any language whether English or Tamil can be learnt through Mathematics.
A language has an alphabet, a set of axioms (which are fixed strings made from the character set A) and some inference rules (called productions).
So a child should learn mathematics first. Then it could learn any language through mathematics. BE A MAD PERSON !
Friday, November 30, 2007
MySQL 5.0 Installation
Double click or run the setup file.
Click >> Next
The next screen we’ll see will be the selection for the setup type for our installation. We’re going to select Custom because we have a few custom requests for the installer to perform. Click >> Next
We will need to change the location for the installation, so we’ll just select MySQL Server and then click on the Change button located in the bottom right.
Simply type in the location, in this case we’ll use “C:\server\mysql” as this is where the rest of our server applications are being installed. Then click on Ok.
This will look like after we have customize the folder Click >> Next
We are now ready to install, just click on Install button
When it’s installing, we’ll see a window similar to this and will disappear automatically when finished.
This is to setup an account on MySQL.com for updates and so on, we’ll just select Skip for the time being and we can take care of this later. Click >> Next
Now we get to configure the server to run the way we’d like for it to run. Just click Finish button
This screen is the start page for the Server Instance Configuration Wizard.
Simply click on Next
We’ll want to select Standard Configuration from the next screen. Remember this is for new installations of MySQL. Users that already have MySQL installed and are upgrading, please select Detailed Configuration. Click >> Next
Now we get to make a few choices about our server, for this project we’ll use “Install As Windows Service” and make sure “Launch the MySQL Server automatically” option is checked. This will insure the MySQL server is started if it ever shuts down, or the system ever restarts. Click >> Next
Next we’ll need to select a root password, simply type a password you’d like to use for root access and let’s write it down so we don’t forget it. Also remember to check “Enable root access from remote machines” ONLY IF you want to edit anything from a remote location later on.
The next screen is simply the start screen for the configuration utility, letting us know what it’s about to perform. Simply click on Execute.
When Start Service is error, try to change the name of the service in previous screen (Choose Detailed Configuration)
If there's an error like this screen, then, it maybe because your Computer Firewall block TCP port 3306 for connections. Just go to Start Program => Control Panel => Windows Firewall. If you haven't encounter this problem, you can skip to the next step
After that, click Exceptions tab, and click Add Port button
Just insert:Name: MySQL ConnectionsPort Number: 3306
and make sure, you choose TCP
Click >> OK
Click OK again to exit Windows Firewall options
Back to the MySQL Configuration Screen, press retry to continue the configuration
Once everything is finished it will look like this. This give a little information about what has happened and show that everything goes well.Click Finish button
Once we’ve finished the installation, we can run MySQL application to make sure that MySQL is installed and working properly.
Find the folder in the start menu where MySQL is located and launch the “MySQL Command Line Client”
Once it's open, simply enter the password we just set and if the client allows access with no errors, MySQL is now installed and working properly. There is no need to leave this command line client open, simply type “exit” and enter. This should close the client out. We now have finished installing MySQL and it’s working correctly.
Click >> Next
The next screen we’ll see will be the selection for the setup type for our installation. We’re going to select Custom because we have a few custom requests for the installer to perform. Click >> Next
We will need to change the location for the installation, so we’ll just select MySQL Server and then click on the Change button located in the bottom right.
Simply type in the location, in this case we’ll use “C:\server\mysql” as this is where the rest of our server applications are being installed. Then click on Ok.
This will look like after we have customize the folder Click >> Next
We are now ready to install, just click on Install button
When it’s installing, we’ll see a window similar to this and will disappear automatically when finished.
This is to setup an account on MySQL.com for updates and so on, we’ll just select Skip for the time being and we can take care of this later. Click >> Next
Now we get to configure the server to run the way we’d like for it to run. Just click Finish button
This screen is the start page for the Server Instance Configuration Wizard.
Simply click on Next
We’ll want to select Standard Configuration from the next screen. Remember this is for new installations of MySQL. Users that already have MySQL installed and are upgrading, please select Detailed Configuration. Click >> Next
Now we get to make a few choices about our server, for this project we’ll use “Install As Windows Service” and make sure “Launch the MySQL Server automatically” option is checked. This will insure the MySQL server is started if it ever shuts down, or the system ever restarts. Click >> Next
Next we’ll need to select a root password, simply type a password you’d like to use for root access and let’s write it down so we don’t forget it. Also remember to check “Enable root access from remote machines” ONLY IF you want to edit anything from a remote location later on.
The next screen is simply the start screen for the configuration utility, letting us know what it’s about to perform. Simply click on Execute.
When Start Service is error, try to change the name of the service in previous screen (Choose Detailed Configuration)
If there's an error like this screen, then, it maybe because your Computer Firewall block TCP port 3306 for connections. Just go to Start Program => Control Panel => Windows Firewall. If you haven't encounter this problem, you can skip to the next step
After that, click Exceptions tab, and click Add Port button
Just insert:Name: MySQL ConnectionsPort Number: 3306
and make sure, you choose TCP
Click >> OK
Click OK again to exit Windows Firewall options
Back to the MySQL Configuration Screen, press retry to continue the configuration
Once everything is finished it will look like this. This give a little information about what has happened and show that everything goes well.Click Finish button
Once we’ve finished the installation, we can run MySQL application to make sure that MySQL is installed and working properly.
Find the folder in the start menu where MySQL is located and launch the “MySQL Command Line Client”
Once it's open, simply enter the password we just set and if the client allows access with no errors, MySQL is now installed and working properly. There is no need to leave this command line client open, simply type “exit” and enter. This should close the client out. We now have finished installing MySQL and it’s working correctly.
Wednesday, November 28, 2007
The Perfect Boss . . .
Courtesy: Information was provided by Mr.Jay
There were about 70 scientists working on a very hectic project. All of them were really frustrated due to the pressure of work and the demands of their boss but everyone was loyal to him and did not think of quitting the job.
One day, one scientist came to his boss and told him - Sir, I have promised to my children that I will take them to the exhibition going on in our township. So I want to leave the office at 5 30 pm.
His boss replied "OK, You're permitted to leave the office early today" The Scientist started working. He continued his work after lunch. As usual he got involved to such an extent that he looked at his watch when he felt he was close to completion.The time was 8.30 PM. Suddenly he remembered of the promise he had given to his children. He looked for his boss,,He was not there. Having told him in the morning itself, he closed everything and left for home. Deep within himself, he was feeling guilty for having disappointed his children.He reached home. Children were not there.His wife alone was sitting in the hall and reading magazines.
The situation was explosive, any talk would boomerang on him.
His wife asked him "Would you like to have coffee or shall I straight away serve dinner if you are hungry.
The man replied "If you would like to have coffee, i too will have but what
about Children ??"
Wife replied "You don't know ?? Your manager came here at 5.15 PM and has taken the children to the exhibition "
What had really happened was ... The boss who granted him permission was observing him working seriously at 5.00 PM. He thought to himself, this person will not leave the work, but if he has promised his children they should enjoy the visit to exhibition.
So he took the lead in taking them to exhibition
The boss does not have to do it everytime. But once it is done, loyalty is
established.
That is why all the scientists at Thumba continued to work under their boss
eventhough the stress was tremendous. By the way , can you hazard a guess as to who the boss was..? He was none other than Dr. APJ Abdul Kalam. . .
Monday, November 26, 2007
Is the lamp on or off?
Consider a lamp, with a switch. Hit the switch once, it turns it on. Hit it again, it turns it off. Let us imagine there is a being with supernatural powers who likes to play with this lamp as follows.
First, he turns it on. At the end of one minute, he turns it off. At the end of half a minute, he turns it on again. At the end of a quarter of a minute, he turns it off. In one eighth of a minute, he turns it on again. And so on, hitting the switch each time after waiting exactly one-half the time he waited before hitting it the last time.
It is easy to see that all these infinitely many time intervals add up to exactly two minutes.
(since 1/2 + 1/4 + 1/8 +1/16 +... = 1 we have the total as two minutes !)
QUESTION: At the end of two minutes, is the lamp on, or off?
ANOTHER QUESTION: Here the lamp started out being off. Would it have made any difference if it had started out being on?
First, he turns it on. At the end of one minute, he turns it off. At the end of half a minute, he turns it on again. At the end of a quarter of a minute, he turns it off. In one eighth of a minute, he turns it on again. And so on, hitting the switch each time after waiting exactly one-half the time he waited before hitting it the last time.
It is easy to see that all these infinitely many time intervals add up to exactly two minutes.
(since 1/2 + 1/4 + 1/8 +1/16 +... = 1 we have the total as two minutes !)
QUESTION: At the end of two minutes, is the lamp on, or off?
ANOTHER QUESTION: Here the lamp started out being off. Would it have made any difference if it had started out being on?
Be a Mad Person
I am a MAD Person. I mean Mathematical Ability Developing Person. I wish all of you to become MAD persons.
To begin with how to scratch your brain ( Boolean Randomized Algebraic Integral Numero nerves - explain this if you can !) to show you the beauty of Mathematics in my forthcoming blog articles, i shall raise the following questions.
Question no 1.
The definition of a set given by George Cantor was disproved by Betrand Russell. So could you define a set?
Question no 2.
Why a tripod has only three legs?
Question no 3.
What is the role of DS1 in the mathematics world? (that is in which context the term DS1 is used in mathematics? (or the relation between DS1 and Mathematics)
To begin with how to scratch your brain ( Boolean Randomized Algebraic Integral Numero nerves - explain this if you can !) to show you the beauty of Mathematics in my forthcoming blog articles, i shall raise the following questions.
Question no 1.
The definition of a set given by George Cantor was disproved by Betrand Russell. So could you define a set?
Question no 2.
Why a tripod has only three legs?
Question no 3.
What is the role of DS1 in the mathematics world? (that is in which context the term DS1 is used in mathematics? (or the relation between DS1 and Mathematics)
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