# Manuals/calci/SERIESSUM

SERIESSUM (x,n,m,coefficients)

• is the power series value.
• is the initial power value.
• is the step value to increase the n value for each term.
• is the set of coefficients by which each successive power of x is multiplied.
• SERIESSUM(), returns the sum of a power series based on the formula.

## Description

• This function gives the value of the seriessum of the given set of values.
• Seriessum is defined by the following formula : .
• Here is the power-series value, is the starting power value, is the increasing value of a power and is the set of coefficients.
• According to the number of coefficients, the number of terms of the power series also get varies.
• For example there 5 values in coefficients, then 5 terms will be there in power series.
```   This function will give the result as error when any one of the argument is non-numeric.
```

## Examples

1. =SERIESSUM(3,2,2,[1,2,3,4,5,6]) = 3512493
2. =SERIESSUM(1,0,4,[1,2,3]) = 6
3. =SERIESSUM(2,1,5,[2,4,6,8]) = 536836
4. =SERIESSUM(0,2,4,[1,2,3,4,5]) = 0
5. =SERIESSUM(1,0,3,[1,2,3,4,5]) = 15
6. =SERIESSUM(1,1,5,) = 1

SERIES SUM