`68f547`

Subject: op:unary-
Category: value
Formula: =-{1,-2,3}
Canonical: {-1, 2, -3}

Per-engine results

matches canonical diverges no fixture

Engine	Verdict	Value
gsheets	match	{-1, 2, -3}
excel	match	{-1, 2, -3}
lattice	match	{-1, 2, -3}
ironcalc	diverge	#N/IMPL!
hyperformula	match	{-1, 2, -3}
libreoffice	diverge	-1
formulas	match	{-1, 2, -3}
pycel	diverge	-1