Definition of stationary point in English:
A point on a curve where the gradient is zero.
- The Einstein equation can be derived as the solution to Euler-Lagrange equations that represent the stationary point, or extremum, of the action.
- An important postulate concerning stationary points that we adopt in smooth infinitesimal analysis is the Constancy Principle.
- This is a consequence of the symmetry of the model in the two components; in fact is a stationary point on the likelihood surface.