Curvature measures the angular rate of change of the direction of the tangent line per unit distance along the curve
Curvature measures the angular rate of change of the direction of the tangent line per unit distance along the curve
Curvature quantifies how sharply a curve bends at a given point. For curves like circles, curvature remains constant and is inversely proportional to the radius of the circle. This intrinsic measure of curvature is independent of the ambient space in which the curve resides.
Example
Consider a circle with radius r. The curvature k at any point on the circle is given by k = 1/r. If r = 2 units, then k = 1/2 radians per unit distance along the curve.
Understanding curvature helps in grasping the geometric properties of curves and surfaces, which is fundamental in fields like physics, engineering, and computer graphics.
Riemannian manifold
Riemannian manifolds generalize Euclidean space concepts like distance and curvature
Manifold
A manifold locally resembles R^n
Euclidean geometry
Euclidean distance measures absolute position in space
Geodesics on an ellipsoid
Geodesics are the shortest paths on a curved surface
Manifold hypothesis
High-dimensional data lies on lower-dimensional manifolds
Lyapunov exponents measure: rate of divergence of nearby trajectories in a dynamical system
Lyapunov exponents measure the rate of divergence of nearby trajectories in a dynamical system
One email a day: 5 concepts + the 5 stories that matter →
Swipe through 100 ML concepts daily
Open TickerNews