Function File: psi = geocentricLatitude (phi, flattening)
Function File: psi = geocentricLatitude (phi, flattening, angleUnit)

Return geocentric latitude (psi) given geodetic latitude (phi) and flattening.

The default input and output is in degrees; use optional third parameter angleUnit for radians. phi can be a scalar, vector, matrix or any ND array. flattening must be a scalar value in the interval [0..1).

Examples Scalar input:

psi = geocentricLatitude (45, 0.0033528)
=> psi =
 44.8076

Also can use radians:

psi = geocentricLatitude (pi/4, 0.0033528, "radians")
=> psi =
 0.78204

Vector Input:

phi = 35:5:45;
psi = geocentricLatitude (phi, 0.0033528)
=> psi =
 34.819      39.811      44.808

See also: parametricLatitude, geodeticLatitudeFromGeocentric, geodeticLatitudeFromParametric.

Package: mapping