CALC.seriessum(x, n, m, coefficients)

Returns the sum of a power series based on the formula: a1xn + a2x(n+m) + a3x(n+3m) + … + aix(n+(i-1)m). X is the input value to the power series. N is the initial power to which you want to raise X. M is the step by which to increase N for each term in the series. Coefficients is a set of coefficients by which each successive power of X is multiplied.

Example

CALC.seriessum(2, 0, 1, [1,2,3]);

// returns 17

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