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Floor Function
Greatest Integer Function

A step function of x which is the greatest integer less than or equal to x. The floor function is written a number of different ways: with special brackets or , or by using either boldface brackets [x] or plain brackets [x].

Examples: and .

 

See also

Ceiling function (also known as least integer function)

 


  this page updated 27-aug-12
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons
NCTM Web Bytes December 2004 Web Bytes March 2005 Web Bytes