`seriessum-x-equals-one`

Subject: SERIESSUM
Category: value
Formula: =SERIESSUM(1, 1, 1, {2, 3, 4})
Canonical: 9

Owning divergences (1)

DV-0041 formulas, ironcalc, pycel: function not implemented — SERIESSUM
missing-function formulasironcalcpycel

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	match	9
excel	match	9
lattice	match	9
ironcalc	diverge	#NAME?
hyperformula	match	9
libreoffice	diverge	—
formulas	diverge	#NAME?
pycel	diverge	#NAME?