Circled dot - Wikipedia [proxy]

The circled dot, circumpunct, or circle with a point at its centre is an ancient symbol. It can represent:

Hadamard product is the element wise multiplication of matrices of same size denoted by .
Circled dot operator ⊙ (which represents the XNOR gate; Unicode Mathematical Operators), and n-ary circled dot operator ⨀ (Unicode Supplemental Mathematical Operators)

A nazar is a circled-dot-shaped amulet believed to protect against the evil eye
Center of pressure
Mensuration sign for ⁹
₈ meter 𝇇 (Unicode Musical Symbols)
Used, or cancelled, stamp (philately)
The trademark of the Target Corporation
As a symbol of the phallus or nature's generative principle and of an Entered Apprentice Freemason^[1]
City centre (European road-signs)
End of trail / End of the game. Gone home. (scouting)
The Symbol of "Waterhole" (or a related concept) in Australian Aborigine Art
In Germany it is symbol for a "Gestempelte Briefmarke" (canceled stamp), while a star means "postfrisch" (mint Stamp)
In geometry, it is often the symbol for a circle
In physics, it can be used to denote a vector facing out of the page
In mathematics, especially in literature related to machine learning, it is used to denote element-wise multiplication

References[edit]

^ Duncan, Malcom (1866). Duncan's Masonic Ritual and Monitor or Guide to the Three Symbolic Degrees of the Ancient York Rite, and the Degrees of Mark Master, Past Master, Most Excellent Master, and the Royal Arch. New York: Dick & Fitzgerald.