Iron Triangle (Vietnam) Iron Triangle (Vietnam) The Iron Triangle (Vietnamese:"Tam Giác Sắt") was a area in the Bình Dương Province of Vietnam, so named due to it being a stronghold of Viet Minh activity during the war. The region was under control of the Viet Minh throughout the French war in Vietnam and continued to be so throughout the phase of American involvement in the Vietnam War, despite concerted efforts on the part of US and South Vietnamese forces to destabilize the region as a power base for their enemy, the communist North Vietnamese–sponsored and–directed South Vietnamese insurgent movement, the National Liberation Front
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