Resolve GH-69

Move find square function to "calc" package.
Test cases has been adjusted as well.

src/calc/__init__.py

@@ -9,6 +9,7 @@
     "get_fibonacci_number",
     "get_fibonacci_number_nr",
     "get_sum_of_strings",
+    "get_square",
     "get_squares",
 ]
 

src/calc/func.py

@@ -3,7 +3,22 @@
 
 """
 
-from typing import List
+from typing import List, Union
+
+
+def get_square(number: Union[int, float]) -> Union[int, float]:
+    """
+    Calculate the square value of a given number
+
+    :param number: The input number for which the square value is calculated.
+    :type number: int | float
+
+    :return: the square value of the input number
+    :rtype: int | float
+
+    """
+
+    return number ** 2
 
 
 def get_squares(limit: int, /) -> List[int]:
@@ -18,7 +33,7 @@ def get_squares(limit: int, /) -> List[int]:
 
     """
 
-    return [number ** 2 for number in range(limit)]
+    return [get_square(number) for number in range(limit)]
 
 
 def get_factorial(number: int, /) -> int:

tests/calc/func_test.py

@@ -1,6 +1,11 @@
 import calc
 
 
+def test_get_square():
+    assert calc.get_square(4) == 16
+    assert calc.get_square(-3) == 9
+
+
 def test_get_squares():
     test = [
         0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256