diff --git a/DIRECTORY.md b/DIRECTORY.md
index 17940c6a3..fb8312c63 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -19,6 +19,7 @@
   * [Knight Tour](https://github.com/TheAlgorithms/Python/blob/master/backtracking/knight_tour.py)
   * [Minimax](https://github.com/TheAlgorithms/Python/blob/master/backtracking/minimax.py)
   * [N Queens](https://github.com/TheAlgorithms/Python/blob/master/backtracking/n_queens.py)
+  * [N Queens Math](https://github.com/TheAlgorithms/Python/blob/master/backtracking/n_queens_math.py)
   * [Rat In Maze](https://github.com/TheAlgorithms/Python/blob/master/backtracking/rat_in_maze.py)
   * [Sudoku](https://github.com/TheAlgorithms/Python/blob/master/backtracking/sudoku.py)
   * [Sum Of Subsets](https://github.com/TheAlgorithms/Python/blob/master/backtracking/sum_of_subsets.py)
@@ -219,6 +220,9 @@
 ## Fuzzy Logic
   * [Fuzzy Operations](https://github.com/TheAlgorithms/Python/blob/master/fuzzy_logic/fuzzy_operations.py)
 
+## Genetic Algorithm
+  * [Basic String](https://github.com/TheAlgorithms/Python/blob/master/genetic_algorithm/basic_string.py)
+
 ## Geodesy
   * [Haversine Distance](https://github.com/TheAlgorithms/Python/blob/master/geodesy/haversine_distance.py)
   * [Lamberts Ellipsoidal Distance](https://github.com/TheAlgorithms/Python/blob/master/geodesy/lamberts_ellipsoidal_distance.py)
@@ -293,6 +297,7 @@
 
 ## Machine Learning
   * [Astar](https://github.com/TheAlgorithms/Python/blob/master/machine_learning/astar.py)
+  * [Data Transformations](https://github.com/TheAlgorithms/Python/blob/master/machine_learning/data_transformations.py)
   * [Decision Tree](https://github.com/TheAlgorithms/Python/blob/master/machine_learning/decision_tree.py)
   * [Gaussian Naive Bayes](https://github.com/TheAlgorithms/Python/blob/master/machine_learning/gaussian_naive_bayes.py)
   * [Gradient Descent](https://github.com/TheAlgorithms/Python/blob/master/machine_learning/gradient_descent.py)
@@ -402,6 +407,7 @@
   * [Square Root](https://github.com/TheAlgorithms/Python/blob/master/maths/square_root.py)
   * [Sum Of Arithmetic Series](https://github.com/TheAlgorithms/Python/blob/master/maths/sum_of_arithmetic_series.py)
   * [Sum Of Digits](https://github.com/TheAlgorithms/Python/blob/master/maths/sum_of_digits.py)
+  * [Sum Of Geometric Progression](https://github.com/TheAlgorithms/Python/blob/master/maths/sum_of_geometric_progression.py)
   * [Test Prime Check](https://github.com/TheAlgorithms/Python/blob/master/maths/test_prime_check.py)
   * [Trapezoidal Rule](https://github.com/TheAlgorithms/Python/blob/master/maths/trapezoidal_rule.py)
   * [Volume](https://github.com/TheAlgorithms/Python/blob/master/maths/volume.py)
@@ -680,6 +686,7 @@
   * [Crawl Google Results](https://github.com/TheAlgorithms/Python/blob/master/web_programming/crawl_google_results.py)
   * [Current Stock Price](https://github.com/TheAlgorithms/Python/blob/master/web_programming/current_stock_price.py)
   * [Current Weather](https://github.com/TheAlgorithms/Python/blob/master/web_programming/current_weather.py)
+  * [Daily Horoscope](https://github.com/TheAlgorithms/Python/blob/master/web_programming/daily_horoscope.py)
   * [Emails From Url](https://github.com/TheAlgorithms/Python/blob/master/web_programming/emails_from_url.py)
   * [Fetch Bbc News](https://github.com/TheAlgorithms/Python/blob/master/web_programming/fetch_bbc_news.py)
   * [Fetch Github Info](https://github.com/TheAlgorithms/Python/blob/master/web_programming/fetch_github_info.py)
diff --git a/matrix/matrix_operation.py b/matrix/matrix_operation.py
index da4e4be11..ddc201a1a 100644
--- a/matrix/matrix_operation.py
+++ b/matrix/matrix_operation.py
@@ -101,8 +101,8 @@ def minor(matrix: List[list], row: int, column: int) -> List[list]:
     >>> minor([[1, 2], [3, 4]], 1, 1)
     [[1]]
     """
-    minor = matrix[:row] + matrix[row + 1:]
-    return [row[:column] + row[column + 1:] for row in minor]
+    minor = matrix[:row] + matrix[row + 1 :]
+    return [row[:column] + row[column + 1 :] for row in minor]
 
 
 def determinant(matrix: List[list]) -> int:
@@ -155,8 +155,7 @@ def _shape(matrix: List[list]) -> list:
     return list((len(matrix), len(matrix[0])))
 
 
-def _verify_matrix_sizes(
-        matrix_a: List[list], matrix_b: List[list]) -> Tuple[list]:
+def _verify_matrix_sizes(matrix_a: List[list], matrix_b: List[list]) -> Tuple[list]:
     shape = _shape(matrix_a)
     shape += _shape(matrix_b)
     if shape[0] != shape[2] or shape[1] != shape[3]:
@@ -170,12 +169,9 @@ def _verify_matrix_sizes(
 def main():
     matrix_a = [[12, 10], [3, 9]]
     matrix_b = [[3, 4], [7, 4]]
-    matrix_c = [[11, 12, 13, 14], [21, 22, 23, 24],
-                [31, 32, 33, 34], [41, 42, 43, 44]]
+    matrix_c = [[11, 12, 13, 14], [21, 22, 23, 24], [31, 32, 33, 34], [41, 42, 43, 44]]
     matrix_d = [[3, 0, 2], [2, 0, -2], [0, 1, 1]]
-    print(
-        f"Add Operation, {matrix_a} + {matrix_b} ="
-        f"{add(matrix_a, matrix_b)} \n")
+    print(f"Add Operation, {matrix_a} + {matrix_b} =" f"{add(matrix_a, matrix_b)} \n")
     print(
         f"Multiply Operation, {matrix_a} * {matrix_b}",
         f"= {multiply(matrix_a, matrix_b)} \n",