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U+2248 ≈ ALMOST EQUAL TO. U+2261 ≡ IDENTICAL TO. A well-known equality featuring the equal sign. The equals sign ( British English) or equal sign ( American English ), also known as the equality sign, is the mathematical symbol =, which is used to indicate equality in some well-defined sense. [1]
Without proper rendering support, you may see question marks, boxes, or other symbols. The triple bar or tribar, ≡, is a symbol with multiple, context-dependent meanings indicating equivalence of two different things. Its main uses are in mathematics and logic.
Robert Recorde ( c. 1510 – 1558) was a Welsh [1] [2] physician and mathematician. He invented the equals sign (=) and also introduced the pre-existing plus (+) and minus (−) signs to English speakers in 1557.
1. Denotes either a plus sign or a minus sign. 2. Denotes the range of values that a measured quantity may have; for example, 10 ± 2 denotes an unknown value that lies between 8 and 12. ∓ (minus-plus sign) Used paired with ±, denotes the opposite sign; that is, + if ± is –, and – if ± is +. ÷ (division sign)
Macintosh: ⌥ Option+⇧ Shift+= (equal sign on the non-numeric keypad). Unix-like systems: Compose,+,-or ⇧ Shift+Ctrl+u B1space (second works on Chromebook) In the Vim text editor (in Insert mode): Ctrl+k +-or Ctrl+v 177 or Ctrl+v x B1 or Ctrl+v u 00B1; AutoCAD shortcut string: %%p; Similar characters
List of logic symbols. This article contains logic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of logic symbols. In logic, a set of symbols is commonly used to express logical representation.
U+226F ≯ NOT GREATER-THAN. U+226B ≫ MUCH GREATER-THAN. The greater-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the right, >, has been found in documents dated as far back as 1631. [1]
The sign function or signum function extracts the sign of a real number, by mapping the set of real numbers to the set of the three reals {,,}. It can be defined as follows: [1]
This article contains Unicode mathematical symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of mathematical symbols. The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date.
The number sign was assigned code 35 (hex 0x23) in ASCII where it was inherited by many character sets. In EBCDIC it is often at 0x7B or 0xEC. Unicode characters with "number sign" in their names: U+0023 # NUMBER SIGN Other attested names in Unicode are: POUND SIGN, HASH, CROSSHATCH, OCTOTHORPE. U+0600 ARABIC NUMBER SIGN; U+0BFA ௺ TAMIL ...
