earthRadius

Mean radius of planet Earth

Syntax

R = earthRadius
R = earthRadius(lengthUnit)


Description

R = earthRadius returns the scalar value 6371000, the mean radius of the Earth in meters.

R = earthRadius(lengthUnit) returns the mean radius of the Earth using the specified unit of length. The lengthUnit input may be any value accepted by the validateLengthUnit function.

Examples

Retrieve the mean radius of the Earth, using several units.

earthRadius             % Returns 6371000

earthRadius('meters')   % Returns 6371000

earthRadius('km')       % Returns 6371