https://electricalacademia.com/electronics/bjt-operating-regions/
BJT: Operating Regions, Characteristic Curves | Electrical Academia
Oct 23, 2025 - This article explores the operating regions of a bipolar junction transistor (BJT), including the active, cutoff, and saturation regions. It also discusses the...
characteristic curvesbjtoperatingregionselectrical
https://hyperelliptic.org/EFD/g1p/auto-shortw-jacobian-0.html
EFD / Genus-1 large-characteristic / Jacobian coordinates with a4=0 for short Weierstrass curves
for shortefdgenuslargecharacteristic