Christian Lawson-Perfect: Created page with "Category:Local variations Intervals are often written as a pair of numbers between two brackets, with the brackets determining whether the interval is open or closed at e..."

2021-07-07T18:31:41Z

Created page with "Category:Local variations Intervals are often written as a pair of numbers between two brackets, with the brackets determining whether the interval is open or closed at e..."

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[[Category:Local variations]]

Intervals are often written as a pair of numbers between two brackets, with the brackets determining whether the interval is open or closed at either end.

One convention is to use parentheses for 'open' and square brackets for closed.
The interval between \(a\) and \(b\) which contains \(a\) but not \(b\) is written \([a,b)\).
This conflicts with quite a few things because [[parentheses are overused]].

Another convention is to always use square brackets, but reversed for 'open'.
The interval above is written \([a, b[\).

Intervals - Revision history

Christian Lawson-Perfect: Created page with "Category:Local variations Intervals are often written as a pair of numbers between two brackets, with the brackets determining whether the interval is open or closed at e..."