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Division by zero. The reciprocal function y = 1 x. As x approaches zero from the right, y tends to positive infinity. As x approaches zero from the left, y tends to negative infinity. In mathematics, division by zero, division where the divisor (denominator) is zero, is a unique and problematic special case.
In the US and many international publications, BAC levels are written as a percentage such as 0.08%, meaning that there is 0.08 g of alcohol for every 100 mL of blood. [1] [2] In different countries, the maximum permitted BAC when driving ranges from the limit of detection (zero tolerance) to 0.08%. [3] [2] BAC levels above 0.40% are ...
where μ is the expected value of the random variables, σ equals their distribution's standard deviation divided by n 1 ⁄ 2, and n is the number of random variables. The standard deviation therefore is simply a scaling variable that adjusts how broad the curve will be, though it also appears in the normalizing constant .
2.07 [110] 1.248 [205] Part of a binary star system. Alderamin: 49.05 ± 0.08: A8Vn [107] or A7IV-V [206] 2.823 × 2.175 [206] 2 ± 0.15 [206] 2.46 [207] 1.57 [116] Castor: Aa 51 ± 3: A1V [208] 2.089 [209] 2.37 [209] 1.93 [73] 0.986 [210] Part of a sextuple star system. Ba Am [208] 1.648 [209] 1.79 [209] 2.97 [73] 1.886 [210] Delta Leonis ...
5.9 ± 2.2 1.19 ± 0.36 microlensing 25,070 ± 2930 0.63 ± 0.23 Another solution suggests a larger semi-major axis, of 2.09 ± 0.63 AU. [56] OGLE-2023-BLG-0836Lb 4.36 +2.35 −2.2: 3.7 +1 −1.2: microlensing 16,690 +4430 −5250 [f] The planet is located in a binary star system, and is likely to be orbiting both stars in the system. [57 ...
Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. [1] For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase : [2]
The micrometre (Commonwealth English) as used by the International Bureau of Weights and Measures; [1] SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, [2] is a unit of length in the International System of Units (SI) equalling 1 × 10 −6 metre (SI standard prefix "micro-" = 10 −6); that is, one millionth of a metre (or one thousandth of a ...
Equals 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] In an equation, it is placed between two expressions that have the same value, or for which one studies the conditions under which ...