Integral sign
From LifeWiki
Integral sign  
View static image  
Pattern type  Strict still life  

Number of cells  9  
Bounding box  5×5  
Discovered by  Unknown  
Year of discovery  Unknown  
 
 

Integral sign (or simply integral) is a 9bit 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.
It can also be seen as a trans version of the house.
Commonness
Integral sign is the nineteenth most common still life in Achim Flammenkamp's census, being less common than shillelagh but more common than boattie.^{[1]} It is also the twentyfifth most common object on Adam P. Goucher's Catagolue.^{[2]}
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 Eric Weisstein's Treasure Trove of Life
 Integral sign at the Life Lexicon
 Integral sign at Adam P. Goucher's Catagolue
 The 10 ninebit stilllifes at Mark D. Niemiec's Life Page