Correct documentation of equi_sph. Fix #21.

CHANGELOG

 Changelog
 =========
+2021-10-20 v1.1.1
+-----------------
+  * Correct documentation of equi_sph
+
 2021-08-25 v1.1.0
 -----------------
   * Add geodetic->geocentric conversion for coordinates

pymagglobal/__init__.py

@@ -29,14 +29,14 @@ used in the geomagnetism community to evaluate global field models. It can be
 applied to all cubic-spline based geomagnetic field models stored in the same
 file format as gufm1 or the CALSxk model series.
 
-The package exposes several methods that can be applied to models or splines
-representing a model. To acces the models, use the `Model` class or its
-attribute `Model.splines`. With the `models` dictionary, several built-in
-models can be accessed, see also the `list of included models
+The package exposes several methods that can be applied to models or splines representing
+a model. To acces the models, use the `Model` class or its attribute
+`Model.splines`. With the `models` dictionary, several built-in models can be
+accessed, see also the `list of included models
 <overview.html#included-models>`__.
 '''
 
-# expose only utilities and core members
+# expose only utilities and core modules
 __all__ = ['local_curve', 'dipole_series', 'file2splines', 'field',
            'built_in_models', 'coefficients', 'utils', 'secular_variation',
            'power_spectrum', 'Model']
@@ -46,4 +46,4 @@ from pymagglobal.core import local_curve, dipole_series, file2splines, \
     Model
 from pymagglobal import utils
 
-__version__ = '1.1.0'
+__version__ = '1.1.1'

pymagglobal/utils.py

@@ -293,9 +293,9 @@ def equi_sph(n, twopi=True):
 
     Returns
     -------
-    array of shape (2, n')
-        azimutal and longitudinal angles in radians of n' points, that are
-        equally spaced on the sphere. n' is approximately n.
+    array of shape (2, m)
+        polar and azimutal angles in radians of m points, that are
+        equally spaced on the sphere. m is approximately n.
 
     References
     ----------
@@ -373,7 +373,7 @@ class WGS84(object):
 
 def _geodetic2geocentric(lat, alt, ellipsoid=WGS84()):
     ''' From geodetic latitude and altitude calculate the geocentric latitude
-    and radius.
+    and radius. The algorithm can be found in ISO 16695.
 
     Parameters
     ----------