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The division sign ( ÷) is a mathematical symbol consisting of a short horizontal line with a dot above and another dot below, used in Anglophone countries to indicate the operation of division. This usage, though widespread in some countries, is not universal and the symbol has a different meaning in other countries.
Seven minus four means seven take away four, means seven, six, five, four, three. Seven plus negative four means split seven into two parts, 3 and 4. Have the negative four cancel out the positive four (since they are opposites), leaving three. Same answer, different meaning, identical symbols.
Etymology. The word is derived from Ancient Greek ὑφ' ἕν ( huph' hén ), contracted from ὑπό ἕν ( hypó hén ), "in one" (literally "under one"). [3] [4] An (ἡ) ὑφέν ( (he) hyphén) was an undertie -like ‿ sign written below two adjacent letters to indicate that they belong to the same word when it was necessary to avoid ...
The CharInsert toolbar. To insert a dash or minus sign, use the toolbar below the edit box. Click where you want the character to be inserted, select "Insert" from the pull-down menu, and then: To insert an en dash (–), click on the first character (the shorter dash). To insert an em dash (—), click on the second character (the longer dash).
Order of operations. In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression . These rules are formalized with a ranking of the operations. The rank of an operation is called its precedence, and ...
Underscored or underlined text. An underscore or underline is a line drawn under a segment of text. In proofreading, underscoring is a convention that says "set this text in italic type ", traditionally used on manuscript or typescript as an instruction to the printer. Its use to add emphasis in modern finished documents is generally avoided.
The symbol # is known variously in English-speaking regions as the number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .
Greater-than sign. 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] In mathematical writing, the greater-than sign is typically placed between ...