Mapping Toolbox

minaxis

Calculate semiminor axis from semimajor axis and eccentricity

Syntax

• semiminor = minaxis(semimajor,eccentricity)
  semiminor = minaxis([semimajor,eccentricity])
  

Description

The semiminor axis can be determined given both the semimajor axis and the eccentricity, the two elements of standard geoid vector in the Mapping Toolbox.

semiminor = minaxis(semimajor,eccentricity) returns the semiminor axis length corresponding to the input semimajor axis and eccentricity.

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

Examples

Using the default values for the Earth:

• semiminor = minaxis(almanac('earth','geoid'))
  semiminor =
     6.3568e+03
  

See Also

almanac	Planetary data
axes2ecc majaxis	Related conversion functions

mfwdtran

minvtran