👉 Geldesprung, also known as a "geller's curve", is a mathematical concept in mathematics that represents the relationship between the eccentricity of an ellipse and its semi-major axis. It was first described by Johann Heinrich Gellert in 1827. The concept is named after Johann Gottlieb Gellert, who later became known as the "father of modern mathematics." The term "geller's curve" refers to a specific mathematical function that represents this relationship
