assay
math-longtail

sin-negative

Subject
SIN
Category
value
Formula
=SIN(-PI()/2)
Canonical
-1

Per-engine results

matches canonical diverges no fixture

Engine Verdict Value
gsheets match -1
excel match -1
lattice match -1
ironcalc match -1
hyperformula match -1
libreoffice diverge
formulas match -1
pycel diverge #NAME?