`83cbbf`

Subject: UMINUS
Category: value
Formula: =UMINUS(TRUE)
Canonical: -1

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	-1
excel	diverge	#NAME?
lattice	match	-1
ironcalc	diverge	#NAME?
hyperformula	diverge	#NAME?
libreoffice	diverge	#NAME?
formulas	diverge	#NAME?
pycel	diverge	#NAME?