Question

what is greatest integer function????

Answer 1

\[[x]\] means the greatest integer less than or equal to x. for example
\[[2.4]=2\]
\[[1.99999]=1\]
\[[\pi]=3\]
\[[-\pi]=-4\]

Answer 2

it is a step function because it is constant on any interval
\[[n,n+1)\] for integer n

Answer 3

and here is a nice picture
http://www.wolframalpha.com/input/?i=greatest+integer+%28x%29

you can see why it is called a "step function"

Answer 4

what iss for 4.89

Answer 5

greatest integer less than 4.89 is...

Answer 6

just take the "whole number" part and ignore the decimal

Answer 7

what is fractional integer fn??

Answer 8

only tht ??its too simple

Answer 9

yes i sent you a picture. it is easy. but don't be fooled because piecewise functions can cause lots of problems

Answer 10

so
\[[4.89]=4\]

Answer 11

what is fractional integer fn??