Definition: A diadelphian is a type of mathematical function that is defined by a polynomial equation. In other words, it is a polynomial function with the degree of its highest power being equal to 5, as seen in the equation ax^5 + bx^4 + cx^3 + dx^2 + ex + f = 0. This term is often used in mathematics and physics to represent the wave equation or the Helmholtz equation. It's also used in computer graphics and