Catherine Beyer. Updated on July 08, 2019. Geometric shapes—triangles, circles, squares, stars—have been part of human religious symbolism for thousands of years, long before they became part of scientific endeavors and construction projects by the Egyptians and Greeks. The simplest shapes are found in nature and are used by many different Symbol Symbol Name Meaning / definition Example; ⋅: and: and: x ⋅ y ^ caret / circumflex: and: x ^ y & ampersand: and: x & y + plus: or: x + y: ∨: reversed caret: or: x ∨ y | vertical line: or: x | y: x' single quote: not - negation: x' x: bar: not - negation: x: ¬: not: not - negation: ¬ x! exclamation mark: not - negation! x: ⊕ List of Circle symbols with html entity, unicode number code. Learn how to make over 54 Circle symbols of math, copy and paste text character. The following list of mathematical symbols by subject features a selection of the most common symbols used in modern mathematical notation within formulas, grouped by mathematical topic. As it is impossible to know if a complete list existing today of all symbols used in history is a representation of all ever used in history, as this would Comprehensive collection of 225+ math symbols used in algebra, categorized by subject and type into tables along with each symbol's name, usage and example. The "∅" symbol is always drawn as a slashed circle, whereas in most typefaces the letter "Ø" is a slashed ellipse. The diameter symbol ( ⌀ ) (Unicode character U+2300) is similar to the lowercase letter ø, and in some typefaces it even uses the same glyph , although in many others the glyphs are subtly distinguishable (normally, the .

circle with line underneath symbol