# Talk:Usage categories

Latest comment: 10 months ago by Enky in topic Brackets

## Brackets edit

the frequency indexes in the table show as percentages in brackets. however the opening bracket is [ while the closing bracket is ). those are unpaired. why? Enky (talk) 22:58, 9 January 2024 (UTC)

- in maths, the close parenthesis means open endpoint in an interval, so that means, for example, widespread is [70%, 90%) or is all the numbers between 70% up to
*but-not-including*90% SnpoSuwan (talk) 23:51, 9 January 2024 (UTC)- got it Enky (talk) 09:30, 10 January 2024 (UTC)

- for others, they write it as [70%, 90%[ like I've been taught in school SnpoSuwan (talk) 23:52, 9 January 2024 (UTC)