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Calculate eccentricity from semimajor and semiminor axes

Syntax

Description

Eccentricity, the second element of the standard geoid vector in the Mapping Toolbox, can be determined given both the semimajor and semiminor axes.

eccentricity = axes2ecc(semimajor,semiminor) returns the eccentricity associated with the input axes.

eccentricity = axes2ecc(axes) allows the axes inputs to be packed into a single, two-column input of the form [semimajor, semiminor].

Examples

Using the axes for the default GRS 80 Earth model:

This is the eccentricity returned by almanac('earth','geoid').

See Also

almanac
 Planetary data
ecc2n majaxis minaxis
 Related conversion functions

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