Battle of the Iron Triangle had achieved combat parity and were pushing against the ARVN's outer line of defense around Saigon. Battle of the Iron Triangle The Battle of the Iron Triangle took place from 16 May to 20 November 1974, when the People's Army of Vietnam (PAVN) 9th Division captured Rach Bap and An Dien The Army of the Republic of Vietnam (ARVN) regained the lost towns in a series of costly counterattacks. The Iron Triangle was an important strategic location, bounded on the north by the jungle and overgrown rubber plantations of the Long Nguyen Secret Zone, on the west by the Saigon
Bézier triangle A quadratic (formula_3) Bézier triangle features 6 control points which are all located on the edges. The cubic (formula_4) Bézier triangle is defined by 10 control points and is the lowest order Bézier triangle that has an internal control point, not located on the edges. In all cases, the edges of the triangle will be Bézier curves of the same degree. A cubic Bézier triangle is a surface with the equation where α, β, γ, αβ, αβ, βγ, βγ, αγ, αγ and αβγ are the control points of the triangle and s, t, u (with 0 ≤ s, t, u