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n2ecc

Eccentricity of ellipse from third flattening

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    Syntax

    ecc = n2ecc(n)

    Description

    ecc = n2ecc(n) computes the eccentricity ecc of an ellipse or an ellipsoid of revolution given the third flattening n.

    example

    Examples

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    Open Live Script

    Find the eccentricity of an ellipse from the third flattening. 

    ecc = n2ecc(0.0017)
    ecc = 
0.0823

    Input Arguments

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

    Data Types: single | 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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