Intervals
Tuesday, 27 February 2018
12:21 PM
( ) - exclusive
(open interval)
[ ] - inclusive (closed interval)
Dealing with infinity
When dealing with infinity values, use the round brackets
![Machine generated alternative text:
Suppose that a and b are real numbers and that a < b.
Then
b
b
An interval [a, b] that includes its endpoints a and b is called a closed interval,
while an interval (a, b) that excludes its endpoints is called an open interval. The
intervals [a, b) and (a, b] are neither open nor closed.](Intervals_files/image002.png)
Intervals
Tuesday, 27 February 2018
12:21 PM
( ) - exclusive
(open interval)
[ ] - inclusive (closed interval)
Dealing with infinity
When dealing with infinity values, use the round brackets
Created with Microsoft OneNote 2016.