Fix remarks

Author: vlad-perevezentsev

dpnp/backend/include/dpnp_iface_fptr.hpp

@@ -312,8 +312,6 @@ enum class DPNPFuncName : size_t
                               parameters */
     DPNP_FN_PLACE,         /**< Used in numpy.place() impl  */
     DPNP_FN_POWER,         /**< Used in numpy.power() impl  */
-    DPNP_FN_POWER_EXT,     /**< Used in numpy.power() impl, requires extra
-                              parameters */
     DPNP_FN_PROD,          /**< Used in numpy.prod() impl  */
     DPNP_FN_PROD_EXT, /**< Used in numpy.prod() impl, requires extra parameters
                        */

dpnp/backend/kernels/dpnp_krnl_elemwise.cpp

@@ -1628,13 +1628,6 @@ static void func_map_elemwise_2arg_3type_core(func_map_t &fmap)
                func_type_map_t::find_type<FT1>,
                func_type_map_t::find_type<FTs>>}),
      ...);
-    ((fmap[DPNPFuncName::DPNP_FN_POWER_EXT][FT1][FTs] =
-          {populate_func_types<FT1, FTs>(),
-           (void *)dpnp_power_c_ext<
-               func_type_map_t::find_type<populate_func_types<FT1, FTs>()>,
-               func_type_map_t::find_type<FT1>,
-               func_type_map_t::find_type<FTs>>}),
-     ...);
     ((fmap[DPNPFuncName::DPNP_FN_SUBTRACT_EXT][FT1][FTs] =
           {populate_func_types<FT1, FTs>(),
            (void *)dpnp_subtract_c_ext<

dpnp/dpnp_algo/dpnp_algo.pxd

@@ -190,8 +190,6 @@ cdef extern from "dpnp_iface_fptr.hpp" namespace "DPNPFuncName":  # need this na
         DPNP_FN_PARTITION
         DPNP_FN_PARTITION_EXT
         DPNP_FN_PLACE
-        DPNP_FN_POWER
-        DPNP_FN_POWER_EXT
         DPNP_FN_PROD
         DPNP_FN_PROD_EXT
         DPNP_FN_PTP

dpnp/dpnp_iface_mathematical.py

@@ -1427,8 +1427,10 @@ def power(
     >>> a = dp.array([1, 2, 3, 4, 5])
     >>> b = dp.array([2, 2, 2, 2, 2])
     >>> result = dp.power(a, b)
-    >>> [x for x in result]
-    [1, 4, 9, 16, 25]
+    >>> result
+    array([ 1,  4,  9, 16, 25])
+    >>> dp.power(a, 3)
+    array([  1,   8,  27,  64, 125])
 
     """
 

tests/test_mathematical.py

@@ -993,9 +993,17 @@ def test_integer_power_of_0_or_1(self, val, dtype):
     @pytest.mark.parametrize("dtype", [dpnp.int32, dpnp.int64])
     def test_integer_to_negative_power(self, dtype):
         a = dpnp.arange(2, 10, dtype=dtype)
+        b = dpnp.full(8, -2, dtype=dtype)
         zeros = dpnp.zeros(8, dtype=dtype)
-
-        assert_equal(a ** (-3), zeros)
+        ones = dpnp.ones(8, dtype=dtype)
+
+        assert_array_equal(ones ** (-2), zeros)
+        assert_equal(
+            a ** (-3), zeros
+        )  # positive integer to negative integer power
+        assert_equal(
+            b ** (-4), zeros
+        )  # negative integer to negative integer power
 
     def test_float_to_inf(self):
         a = numpy.array(