The infinity symbol (∞) is a mathematical sign created by John Wallis who is an English mathematician lived between 1616-1703. This symbol represents a line that never ends. Wallis also introduced 1/∞ for an infinitesimal which is so small that you can not measure. He wrote about this in his book Treatise on the Conic Sections in 1655. The infinity symbol looks like a horizontal number 8 and it represents the concept of eternity, endless and unlimited. The common sign for infinity, ∞, was used by the English mathematician John Wallis in 1655.
There are three usages of the infinity symbol (∞)
- the mathematical
- the physical
- the metaphysical
In math an infinity symbol is used like it is a number, but it is not a specific number. It just represents the concept of endless.
There are some ways to display an infinity symbol using HTML. You can either copy paste or use the infinity code in your document. See some examples below:
html infinity decimal
html infinity hex
html infinity named
Infinity Symbol Examples
If x is a real number, then we can write as:
- -∞ < x < ∞
- ∞ + x = ∞
- ∞ - x = ∞
- ∞ * x = ∞
- ∞ * ∞ = ∞
- -∞ * -∞ = ∞
- ∞ + ∞ = ∞
- -∞ + -∞ = -∞
- x - ∞ = -∞
The infinity sign is sometimes called as the Lemniscate. Both comes from the number 8 and it symbolizes eternity, balance and cosmic order. The number 8 has always been important in many ancient cultures.
Modern Use of Infinity Symbol
The original meaning of the infinity symbol refers to union between male and female, duality and perfection in ancient histories. Today there is a very popular usage of the infinity sign in jewelry design, tattoos, wall art and clothing. This symbol has a special and powerful meaning for couples and it shows a promise of forever love. An infinity jewelry can be a perfect gift for your loved one. You can choose an infinity name necklace, a pendant, an infinity ring or an infinity bracelet. Because of the infinity sign is so simple and meaningful, today its popularity is increasing. This symbol also represents infinite possibilities. The sign has been used by the Avon Foundation for Women to represent lives with unlimited potential when free from violence. In 2012 Reese Witherspoon announced Empowerment Circle of Support Necklace in recognition of International Women’s Day on March 8th.
Georg Cantor (1845-1918) who is a German mathematician, created "set theory" in 1874. His work is the beginning of modern understanding of infinity. We can say that he was the first mathematician to understand the concept of infinity and give it a mathematical construction.
Infinity Symbol in Movies
BossLogic who is the one of the most popular fan artists in the world, has published amazing posters for the movie "Avengers: Infinity War". This is a 2018 superhero movie based on American comic books published by Marvel Comics. Very popular stars played in the film, such as Robert Downey Jr., Chris Hemsworth, Mark Ruffalo, Scarlett Johansson, Paul Bettany, Benedict Cumberbatch, Zoe Saldana, Don Cheadle and Elizabeth Olsen. And it is directed by Anthony and Joe Russo.
BossLogic from Australia (also knowns as Kode) created Infinity Ready series of posters using the infinity sign. His posters for the movie "Avengers: Infinity War" can be seen on his Instagram.
The Infinity Sign in Annihilation
Annihilation is a 2018 science fiction movie directed and written by Alex Garland. The film is based on the novel by Jeff VanderMeer.
You can notice that a figure 8 tattoo placed on Lena's (Natalie Portman) left forearm in the movie. A snake eating its own tail (known as Ouroboros) symbolizes the cyclical nature of life and self-destruction in the film.
Ouroboros is an ancient symbol depicting a serpent, dragon or snake eating its own tail. The symbol represents the continuous cycle of life and destruction and it has been used in various cultures throughout the history. The word derives from an ancient Greek word meaning "tail-devouring".
It also has been illustrated in different versions of the infinity symbol. An ouroboros symbol is often found as a tattoo or jewelry today. For example, The X-Files' Dana Scully got a tattoo of an Ouroboros in the episode "Never Again".
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