# blog

**URL:** https://swi-prolog.discourse.group/c/blog/30.md

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## [About the blog category](https://swi-prolog.discourse.group/t/about-the-blog-category/3423)

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**Author:** [@jan](https://swi-prolog.discourse.group/u/jan)\
**Replies:** 1\
**Last updated:** [December 27, 2020, 2:55pm UTC](https://swi-prolog.discourse.group/t/about-the-blog-category/3423 "2020-12-27T14:55:10Z")

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This category handles comments to blog posts from https://www.swi-prolog.org/blog

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## [Blog post on graphical grammar 2: Epsilon](https://swi-prolog.discourse.group/t/blog-post-on-graphical-grammar-2-epsilon/7373)

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**Author:** [@kwon-young](https://swi-prolog.discourse.group/u/kwon-young)\
**Replies:** 0\
**Last updated:** [April 14, 2024, 6:21pm UTC](https://swi-prolog.discourse.group/t/blog-post-on-graphical-grammar-2-epsilon/7373 "2024-04-14T18:21:33Z")

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Hello, Here is my second blog post on using graphical grammar together with a configurable upper bound error which I call Epsilon. In the post, I try to explain the problem of comparing reals and use epsilon to measure…

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## [Blog post on graphical grammars](https://swi-prolog.discourse.group/t/blog-post-on-graphical-grammars/6933)

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**Author:** [@kwon-young](https://swi-prolog.discourse.group/u/kwon-young)\
**Replies:** 18\
**Last updated:** [November 11, 2023, 4:12pm UTC](https://swi-prolog.discourse.group/t/blog-post-on-graphical-grammars/6933 "2023-11-11T16:12:51Z")

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Hello all, I would like to share one of my passion project through a very simple blog post on how to relate a triangle with it’s graphical representation. This is my first real blog post so I would like to know if this…

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## [SWI-Prolog Solutions b.v.](https://swi-prolog.discourse.group/t/swi-prolog-solutions-b-v/3429)

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**Author:** [@blogger](https://swi-prolog.discourse.group/u/blogger)\
**Replies:** 1\
**Last updated:** [May 3, 2022, 7:27am UTC](https://swi-prolog.discourse.group/t/swi-prolog-solutions-b-v/3429 "2022-05-03T07:27:36Z")

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In September this year (2020) I have started a company named SWI-Prolog Solutions b.v. Increased focus on stability and scalability of SWI-Prolog and the desire to get into closer contact with real world projects caused…