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ecc2n

Third flattening of ellipse from eccentricity

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    Syntax

    n = ecc2n(ecc)

    Description

    example

    n = ecc2n(ecc) computes the third flattening n of an ellipse or an ellipsoid of revolution given its eccentricity ecc.

    Examples

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    Open Live Script

    Find the third flattening of an ellipse from the eccentricity.

    n = ecc2n(0.0818)
    n = 0.0017

    Input Arguments

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    Eccentricity of the ellipse, specified as a numeric scalar. The value of ecc must be in the range [0, 1].

    Data Types: single | double

    Output Arguments

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    Third flattening of the ellipse, returned as a numeric scalar. The output n is defined as (a–b)/(a+b), where a is the semimajor axis and b is the semiminor axis.

    Version History

    Introduced before R2006a

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    See Also

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