BOOLEAN OPERATORS

Valeria Urquijo

Boolean Operators

March 4, 2010

INDEX You will see

Boolean CreatorOperatorsOr OperatorAnd OperatorNot OperatorTipsTipsCredits

http://www.orbeon.com/download/blog/schema_boolean.jpg

BOOLEAN CREATOR George Boole an English

mathematician

Developed an algebra of logic

The algebra logic that has become the basis for computer database searches

Boolean is named after him

http://www.unc.edu/depts/jomc/academics/dri/loc/Boole.jpeg

OPERATORS Boolean uses operators to

determine whether a statement is true or false.

The most common operators are and, or and not.

These three little words can be enormously helpful when doing online searches.

http://www.le.ac.uk/li/images/boolean_geol.gif

AND OPERATOR And documents search

Documents with both words will appear.

Example: Hide and Seek

Not one ore the other word, but both have to be in the document on the search.

http://homepages.uwp.edu/mano/Boolean.jpg

OR OPERATOR Or documents search

The greatest amount of matches

Documents with either Word.

Example: Hide and SeekSearch results have tu have

one of the two words to apear.

http://homepages.uwp.edu/mano/Boolean.jpg

NOT OPERATOR The search will be limited

One word would be searched and not the other at all.

Example: Hide not SeekSearch results with hide word

and not at all with seek. Documents with seek will word seek will no appear.

http://homepages.uwp.edu/mano/Boolean.jpg

TIPS

You should take time to read the search tips on the site before using a search engine.

Use Boolean operators helped your search and been more accurate with your results.

http://blogs.middlebury.edu/csoseniors/files/2010/01/helpful_tips_image.jpg

TIPS The four favorite best search

engineGoogle Yahoo! Bing Ask

To end Internet may not be the best place to find certain information you can use other resources.

http://www.epilepsyfoundation.org/local/massri/images/Quick-Tips_2.jpg

CREDITS http://www.learnthenet.com/english/

html/31wsearc_3.htm http://homepages.uwp.edu/mano/

Boolean.jpg http://www.le.ac.uk/li/images/

boolean_geol.gif http://www.unc.edu/depts/jomc/

academics/dri/loc/Boole.jpeg http://www.orbeon.com/download/blog/

schema_boolean.jpg