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 x is raised in the power series. -
m
– The additive increment by which x is increased. -
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.
See also
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.