Meridian

A line of constant Longitude on a Spheroid (or Sphere). More generally, a meridian of a Surface ofRevolution is the intersection of the surface with a Plane containing the axis of revolution.

References

Gray, A. Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, p. 358, 1993.

• Unitary Group
• Unitary Matrix
• Unitary Multiperfect Number
• Unitary Multiplicative Character
• Unitary Perfect Number
• Unitary Sociable Numbers
• Unitary Transformation
• Unitary Unimodular Group
• Unit Circle
• Unit Disk
• Unit Fraction
• Unit Matrix
• Unit Point
• Unit Ring
• Unit Sphere
• Unit Square
• Unit Step
• Unit Vector
• Unity
• Univalent Function
• Univariate Function
• Univariate Polynomial
• Universal Graph
• Universal Statement
• Universal Turing Machine