`add-matches-plus-operator`

Subject: ADD
Category: value
Formula: =ADD(7, 11)=7+11
Canonical: true

Owning divergences (1)

DV-0002 excel, formulas, hyperformula, ironcalc, libreoffice, pycel: function not implemented — ADD, AVERAGE.WEIGHTED, DIVIDE (+12 more)
missing-function excelformulashyperformulaironcalclibreofficepycel

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	match	[object Object]
excel	diverge	[object Object]
lattice	match	true
ironcalc	diverge	#NAME?
hyperformula	diverge	#NAME?
libreoffice	diverge	—
formulas	diverge	#NAME?
pycel	diverge	#NAME?