Merge pull request #2703 from devitocodes/arith-doc

docs: fix mmin/mmax docstring

Author: mloubout

devito/builtins/arithmetic.py

@@ -180,21 +180,25 @@ def inner(f, g):
     return f.dtype(n.data[0])
 
 
+red_doc = lambda func: f"""
+    Retrieve the {func}imum.
+
+    Parameters
+    ----------
+    f : array_like or Function
+        Input operand.
+    """
+
+
 mmin = lambda f: _reduce_func(f, np.min, dv.mpi.MPI.MIN)
+mmin.__doc__ = red_doc('min')
 mmax = lambda f: _reduce_func(f, np.max, dv.mpi.MPI.MAX)
+mmax.__doc__ = red_doc('max')
 
 
 @dv.switchconfig(log_level='ERROR')
 @check_builtins_args
 def _reduce_func(f, func, mfunc):
-    """
-    Retrieve the maximum.
-
-    Parameters
-    ----------
-    f : array_like or Function
-        Input operand.
-    """
     if isinstance(f, dv.Constant):
         return f.data
     elif isinstance(f, dv.types.dense.DiscreteFunction):