: phi = auth2geo (xi)

: phi = auth2geo (xi, spheroid)

: phi = auth2geo (xi, spheroid, angleUnit)

Returns the geodetic latitude given authalic latitude xi.

Input

• xi: the authalic latitude(s); scalar, vector or nD array.
• (optional) spheroid: referenceEllipsoid name, EPSG code, or parameter struct: the default is wgs84.
• (optional) angleUnit: string for angular units (’degrees’ or ’radians’, case-insensitive, just the first charachter will do). Default is ’degrees’.

Output

• phi: the geodetic latitude(s), shape matching that of xi.

Example

auth2geo(44.872)
ans =  45.000

See also: geo2auth, geo2con, geo2iso, geo2rect.

Package: mapping