|View static image|
|Pattern type||Strict still life|
|Number of cells||9|
|Year of discovery||Unknown|
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 is the nineteenth most common still life in Achim Flammenkamp's census, being less common than shillelagh but more common than boat-tie. It is also the twenty-fifth most common object on Adam P. Goucher's Catagolue.
- 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.
- Integral sign at Adam P. Goucher's Catagolue
- The 10 nine-bit still-lifes at Mark D. Niemiec's Life Page