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Mathematical notation uses a symbol that compactly represents summation of many similar terms: the summation symbol, Σ, an enlarged form of the upright capital Greek letter sigma. This is defined as. nΣi = m ai = am + am + 1 + am + 2 + ... + an - 1 + an. where i is the index of summation; ai is an indexed variable representing each term of ...
display=inline generates a smaller summation sign and moves the limits on the sum to the right side of the summation sign. The code for this is <math display = inline>\sum_{n=1}^\infty 1/n^2 = \pi^2/6</math>, and it renders as the much more aesthetic = / = /. However, the default font for inline formula is different from the normal text font.
The following sections cover the way of presenting simple inline formulae in HTML, instead of using LaTeX. Templates supporting HTML formatting are listed in Category:Mathematical formatting templates. Not all templates are recommended for use; in particular, use of the {} template to format fractions is discouraged in mathematics articles.
Definition. The arithmetic mean of a set of observed data is equal to the sum of the numerical values of each observation, divided by the total number of observations. Symbolically, for a data set consisting of the values , the arithmetic mean is defined by the formula: [ 2] (For an explanation of the summation operator, see summation .)
t. e. In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, polynomials and, in general, elements of any type of mathematical objects on which an operation denoted "+" is defined.
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A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
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