What does this notation mean?

  • #1
[a;b[

I want to do a problem with this but i can't find anything about it, if anyone can help me it'd be very useful, thank you. :)

The one i want to do exactly is [20;30[ , in case anyone is wondering.
 

Answers and Replies

  • #2
jbriggs444
Science Advisor
Homework Helper
10,885
5,460
  • #3
36,064
7,997
In other words, [20;30[ means {x | 20 ≤ x < 30}, the interval on the real number line between 20 and 30, with 20 included and 30 excluded.
 
  • #4
HallsofIvy
Science Advisor
Homework Helper
41,847
969
Perhaps you are familiar with [20, 30), another notation meaning the same thing- all numbers between 20 and 30, including 20 but not 30.
 

Related Threads on What does this notation mean?

  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
9
Views
1K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
3
Views
2K
Replies
3
Views
780
Y
Replies
2
Views
1K
  • Last Post
Replies
2
Views
1K
Top