The document discusses different types of spirals in mathematics: - Archimedes spiral is defined by the equation in polar coordinates where the distance increases at a constant rate as the angle increases at a constant rate. - A clothoid, also known as the Cornu spiral, is a curve whose radius of curvature decreases inversely proportional to the distance traveled along the curve. - A Fermat spiral, also called a parabolic spiral, is defined by the property that the distance covered over angle is proportional to the angle. - A hyperbolic spiral is the inverse of an Archimedes spiral and is defined by the polar equation rθ = A. - A logarithmic spiral appears frequently in nature and