Clarify the documentation about digits

trytond/doc/ref/fields.rst

@@ -424,9 +424,9 @@ Float
 
    A tuple of two :py:class:`integers <int>`.
 
-   The first integer defines the total of numbers in the integer part.
+   The first integer defines the number of figures in the integer part.
 
-   The second integer defines the total of numbers in the decimal part.
+   The second integer defines the number of figures in the decimal part.
 
    Integers can be replaced by a :class:`~trytond.pyson.PYSON` statement.
    If digits is ``None`` or any values of the tuple is ``None``, no validation

trytond/trytond/model/fields/float.py

@@ -36,8 +36,8 @@ class Float(Field):
             on_change=None, on_change_with=None, depends=None,
             context=None, loading='eager'):
         '''
-        :param digits: a list of two integers defining the total
-            of digits and the number of decimals of the float.
+        :param digits: a tuple of two integers defining the number of figures
+            of the integer and decimal part.
         '''
         super().__init__(string=string, help=help,
             required=required, readonly=readonly, domain=domain, states=states,