What is the difference between ellipsoid and spheroid?

Definitions

- Describing a three-dimensional geometric shape that is similar to a sphere but stretched or compressed in one or more directions. - Referring to a shape that can be formed by rotating an ellipse about one of its axes. - Talking about a mathematical model used to represent the shape of the earth or other celestial bodies.

- Describing a three-dimensional geometric shape that is similar to a sphere but slightly flattened at the poles and bulging at the equator. - Referring to a shape that can be formed by rotating an ellipse about its minor axis. - Talking about a mathematical model used to represent the shape of the earth or other celestial bodies.

List of Similarities

  • 1Both ellipsoid and spheroid are three-dimensional shapes.
  • 2Both shapes are similar to a sphere but differ in some way.
  • 3Both shapes can be formed by rotating an ellipse.
  • 4Both shapes are used as mathematical models to represent the shape of the earth or other celestial bodies.

What is the difference?

  • 1Shape: Ellipsoid is stretched or compressed in one or more directions, while spheroid is slightly flattened at the poles and bulging at the equator.
  • 2Rotation: Ellipsoid can be formed by rotating an ellipse about one of its axes, while spheroid can be formed by rotating an ellipse about its minor axis.
  • 3Application: Ellipsoid is often used in engineering and physics, while spheroid is commonly used in geodesy and geography.
  • 4Symmetry: Ellipsoid may or may not have symmetry, while spheroid has symmetry about its polar axis.
  • 5Connotation: Ellipsoid is a more technical term, while spheroid is a more common term used in everyday language.
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Remember this!

Ellipsoid and spheroid are both three-dimensional shapes that are similar to a sphere but differ in some way. The difference between ellipsoid and spheroid lies in their shape, rotation, application, symmetry, and connotation. Ellipsoid is a more technical term used in engineering and physics, while spheroid is a more common term used in geodesy and geography to describe the shape of the earth or other celestial bodies.

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