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axes2ecc

Eccentricity of ellipse from axes lengths

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    Syntax

    ecc = axes2ecc(semimajor,semiminor)

    Description

    ecc = axes2ecc(semimajor,semiminor) computes the eccentricity ecc of an ellipse or an ellipsoid of revolution given the semimajor and semiminor axes lengths.

    example

    Examples

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    Open Live Script

    Find the eccentricity of an ellipse from the lengths of the semimajor and semiminor axes.

    ecc = axes2ecc(6378137,6356752)
    ecc = 
0.0818

    Input Arguments

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    Semimajor axis length, specified as a positive numeric scalar. The value of semimajor must be greater than that of semiminor.

    Data Types: double

    Semiminor axis length, specified as a positive numeric scalar. The value of semiminor must be less than that of semimajor.

    Data Types: double

    Output Arguments

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    Eccentricity of the ellipse, returned as a numeric scalar in the range [0, 1].

    Version History

    Introduced before R2006a

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    See Also

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