# How to Use SERIESSUM in Google Sheets in 2020?

SERIESSUMGiven parameters x, n, m, and a, returns the power series sum a1xn + a2x(n+m) + … + aix(n+(i-1)m), where i is the number of entries in range `a`.

Sample Usage

SERIESSUM(1,0,1,{FACT(0),FACT(1),FACT(2),FACT(3),FACT(4)})

SERIESSUM(A2,0,2,B2:B10)

Syntax

SERIESSUM(x, n, m, a)

x – The input to the power series. Varies depending on the type of approximation, may be angle, exponent, or some other value.

n – The initial power to which to raise x in the power series.

m – The additive increment by which to increase x.

a – The array or range containing the coefficients of the power series.

Notes

Power series may be used to approximate various constants and functions, including e (Euler’s number), logarithms, integrals, trigonometric functions, etc. However, this function is usually used for custom user-defined models.

SUMSQ: Returns the sum of the squares of a series of numbers and/or cells.

SUMIF: Returns a conditional sum across a range.

SUM: Returns the sum of a series of numbers and/or cells.

QUOTIENT: Returns one number divided by another, without the remainder.

PRODUCT: Returns the result of multiplying a series of numbers together.

MULTIPLY: Returns the product of two numbers. Equivalent to the `*` operator.

MINUS: Returns the difference of two numbers. Equivalent to the `-` operator.

DIVIDE: Returns one number divided by another. Equivalent to the `/` operator.

ADD: Returns the sum of two numbers. Equivalent to the `+` operator.

Examples