👉 The term "spheriquartic" is a mathematical concept in geometry that refers to a circle with four points, each of which is a point on the circumference of the circle. It's often used to denote the intersection of two circles or other geometric figures. The concept was first introduced by mathematician and physicist Sir Isaac Newton in his work "Philosophiæ Naturalis Principia Mathematica" (Mathematical Principles of Natural Philosophy), where he defined a spheriquartic as a
