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The word approximation is derived from Latin approximatus, from proximus meaning very near and the prefix ad-(ad-before p becomes ap- by assimilation) meaning to. [1] Words like approximate, approximately and approximation are used especially in technical or scientific contexts.
In medicine, it may mean "with or without" in some cases. [6] [7] In engineering, the sign indicates the tolerance, which is the range of values that are considered to be acceptable or safe, or which comply with some standard or with a contract. In chemistry, the sign is used to indicate a racemic mixture.
3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.
A.M. – arithmetic mean. AP – arithmetic progression. arccos – inverse cosine function. arccosec – inverse cosecant function. (Also written as arccsc.) arccot – inverse cotangent function. arccsc – inverse cosecant function. (Also written as arccosec.) arcexc – inverse excosecant function. (Also written as arcexcsc, arcexcosec.)
A tilde in front of a single quantity can mean "approximately", "about" [14] or "of the same order of magnitude as." In written mathematical logic , the tilde represents negation : "~ p " means "not p ", where " p " is a proposition .
The latest Federal Reserve survey data found that the median U.S. family net worth is approximately $192,900 – meaning half of U.S. families have less than that amount and half have more.
In statistics, the 68–95–99.7 rule, also known as the empirical rule, and sometimes abbreviated 3sr, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and 99.7% of the values lie within one, two, and three standard deviations of the mean, respectively.
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