summation sign

summation sign

[sə′mā·shən ‚sīn]
(mathematics)
A capital Greek sigma (Σ) that indicates the members of a set are to be added together, and has numbers below and above it indicating the range of values of an index that are to be included in the summation.
References in periodicals archive ?
say, where P(x) = P(x; [alpha]) is the residual function which is the sum of the residues of the generating function, [phi](s) to be defined below, with weights and we are to express the error term [DELTA](x; [delta]) in terms of special functions and where the prime on the summation sign means that the term corresponding to ([n.
where the prime over the summation sign indicates that the summation is over even values of r when n - 1 is even and over odd values of r when n - 1 is odd.
The summation sign seems to be missing from equation (2) for simple duration.
Take the summation sign over the first two growth rates and then over the next two rates on the right-hand side.
Also, if the summation sign appears without an index, by convention the index is understood to go from 1 to n, and we sum all the values of the variable.
The summation sign distributes over an expression in parentheses.
However, where the summation sign is inserted into Equation 1 to make Equation 4 influences the component measures' construction.
In the second term of (12), relocate the summation sign inside the integral.
k], and the prime on the summation sign means that when [[lambda].
First, for the two terms preceding the summation signs, we have that [D.
we cannot interchange the summation signs because the integral defining the sampling functions [[integral].
where we sum over both i and j and require two summation signs.