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unstrict inequality signs (less-than or equals to sign and greater-than or equals to sign) 1670 (with the horizontal bar over the inequality sign, rather than below it) John Wallis: 1734 (with double horizontal bar below the inequality sign) Pierre Bouguer
1. Means "less than or equal to". That is, whatever A and B are, A ≤ B is equivalent to A < B or A = B. 2. Between two groups, may mean that the first one is a subgroup of the second one. ≥ 1. Means "greater than or equal to". That is, whatever A and B are, A ≥ B is equivalent to A > B or A = B. 2.
fullwidth less-than sign u+ff1d ＝ fullwidth equals sign u+ff1e ＞ fullwidth greater-than sign u+ff3c \ fullwidth reverse solidus u+ff3e ^ fullwidth circumflex accent u+ff5c ｜ fullwidth vertical line u+ff5e ～ fullwidth tilde u+ffe2 ￢ fullwidth not sign u+ffe9 ￩ halfwidth leftwards arrow u+ffea ￪ halfwidth upwards arrow u+ffeb ...
A Jewish tradition that dates from at least the 19th century is to write plus using the symbol ﬩, to avoid the writing of a symbol + that could look like a Christian cross. [30] [31] This practice was adopted into Israeli schools and is still commonplace today in elementary schools (including secular schools) but in fewer secondary schools. [31]
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.
The symbol used to denote inequation (when items are not equal) is a slashed equal sign ≠ (U+2260). In LaTeX , this is done with the "\neq" command. Most programming languages, limiting themselves to the 7-bit ASCII character set and typeable characters , use ~= , != , /= , or <> to represent their Boolean inequality operator .
Excel offers many user interface tweaks over the earliest electronic spreadsheets; however, the essence remains the same as in the original spreadsheet software, VisiCalc: the program displays cells organized in rows and columns, and each cell may contain data or a formula, with relative or absolute references to other cells.
In engineering sciences, less formal use of the notation is to state that one quantity is "much greater" than another, [5] normally by several orders of magnitude. The notation a ≪ b means that a is much less than b. [6] The notation a ≫ b means that a is much greater than b. [7]