`255ef9`

Subject: SUM
Category: value
Formula: =SUM(TRUE, FALSE, TRUE)
Canonical: 2

Owning divergences (2)

DV-0006 hyperformula: function not implemented — AND, AVERAGE, AVERAGEIFS (+19 more)
missing-function hyperformula
DV-0248 ironcalc: SUM doesn't coerce booleans or numeric strings — returns 0
arg-semantics ironcalc

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	match	2
excel	match	2
lattice	match	2
ironcalc	diverge	0
hyperformula	diverge	#NAME?
libreoffice	no-data	—
formulas	no-data	—
pycel	no-data	—