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Convert from eccentricity to the n representation of the ellipsoid
Syntax
n = ecc2n(eccentricity)
Description
Eccentricity and the parameter n are two methods of defining an ellipsoid. The definition of n is: (semimajor axis - semiminor axis)/(semimajor axis + semiminor axis). n = ecc2n(eccentricity) returns the equivalent n for the input eccentricities. If the input,eccentricity, is a two-column vector, only the second column is used. This allows the standard two-element geoid vectors to be used as rows of the input, since the second element of these vectors is the eccentricity. In all other cases, all columns of the input are used.
Example
n = ecc2n(almanac('earth','geoid'))
n =
0.00167922039463
See Also
almanac |
Planetary data |
ecc2flatmajaxis |
Other ellipsoid functions |
n2ecc |
Convert from n to eccentricity |