Integral sign
Integral sign (or simply integral) is a 9-bit still life. It can eat gliders the same way that an Eater 1 eats, from either end. If the middle cell of the vertical line is removed, it becomes a bipole.
Integral sign | |||||||||||
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Pattern type | Strict still life | ||||||||||
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Number of cells | 9 | ||||||||||
Bounding box | 5×5 | ||||||||||
Frequency class | 13.4 | ||||||||||
Discovered by | Unknown | ||||||||||
Year of discovery | Unknown | ||||||||||
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Commonness
Integral sign is the nineteenth most common still life in Achim Flammenkamp's census, being less common than shillelagh but more common than boat-tie.[1] It is also the twenty-fifth most common object on Adam P. Goucher's Catagolue.[2]
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See also
References
- Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Integral sign at the Life Lexicon
- The 10 nine-bit still-lifes at Mark D. Niemiec's Life Page
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