# \[Math\] Intervals: examples of closed intervals

DevFeed: [\[Math\] Intervals: examples of closed intervals](<https://devfeed.tech/articles/math-intervals-examples-of-closed-intervals-20564.md>)

Original publisher: [Read original article](<https://yurichev.com/blog/intervals_closed/>)

Published: 2025-12-17T23:00:00Z

Content type: article

Language: en

Sources: [Dennis Yurichev](<https://devfeed.tech/sources/dennis-yurichev.md>)

Topics: [math](<https://devfeed.tech/topics/math.md>), [Mathematics](<https://devfeed.tech/topics/mathematics.md>)

Tags: [examples](<https://devfeed.tech/tags/examples.md>), [math](<https://devfeed.tech/tags/math.md>)

## AI overview

An examples-focused explanation of closed intervals, including their inclusive notation and uses in mathematics, Wolfram Mathematica, Fortran, algorithms, Unix shell patterns, rounded ratings, and everyday ranges.

## Source excerpt

[Math] Intervals: examples of closed intervals