diff --git a/aproksymacja/aproksymacja.py b/aproksymacja/aproksymacja.py
index ce7d4a9..e5e8573 100644
--- a/aproksymacja/aproksymacja.py
+++ b/aproksymacja/aproksymacja.py
@@ -7,25 +7,20 @@ import random as rand
 def print_table(*columns, result):
     headers = ["Lp.", "x0", "x1", "x2", "x0y", "x1y"]
 
-    # Combine headers and columns to calculate max width for each column
     max_widths = [
         max(len(str(cell)) for cell in [header] + list(column))
         for header, column in zip(headers, columns)
     ]
 
-    # Function to format a row
     def format_row(row):
         return " | ".join(f"{str(cell).ljust(width)}" for cell, width in zip(row, max_widths))
 
-    # Print header
     print(format_row(headers))
     print("-" * (sum(max_widths) + 3 * (len(headers) - 1)))  # Separator line
 
-    # Print rows
     for row in zip_longest(*columns, fillvalue=" "):
         print(format_row(row))
 
-    # Print result at the bottom
     print("-" * (sum(max_widths) + 3 * (len(headers) - 1)))
     print(", ".join(result), end="\n\n")
 
@@ -71,7 +66,7 @@ a0 = a0(a1)
 print(f"a0 = {round(a0, 2)}, a1 = {round(a1, 2)}")
 
 
-
+# rysowanie funkcji i punktów
 plt.xlabel('oś x')
 plt.ylabel('oś y')
 plt.title('Aproksymacja - MNK')
diff --git a/rozniczkowanie/rozniczkowanie.py b/rozniczkowanie/rozniczkowanie.py
new file mode 100644
index 0000000..c0e69ac
--- /dev/null
+++ b/rozniczkowanie/rozniczkowanie.py
@@ -0,0 +1,65 @@
+import math
+from itertools import zip_longest
+
+x = [0.1, 0.3, 0.5, 0.7, 0.9, 1.1, 1.3]
+y = [20, 22.222222, 8, 4.081633, 2.469136, 1.652893, 0.83665]
+
+# # z instrukcji, tylko do testu
+# x = [0.6, 0.7, 0.8, 0.9, 1.0]
+# y = [-0.51083, -0.35667, -0.22314, -0.10536, 0.0]
+
+h = math.ceil(x[1] - x[0])
+
+def print_table(*columns):
+    def generate_headers(n):
+        headers = ["x", "f(x)"]
+        superscripts = ["\u2070", "\u00B9", "\u00B2", "\u00B3", "\u2074", "\u2075", "\u2076", "\u2077", "\u2078", "\u2079"]
+        for i in range(1, n):
+            exp = ''.join(superscripts[int(digit)] for digit in str(i))
+            headers.append(f"∇{exp}f(x)")
+        return headers
+    headers = generate_headers(len(columns))
+
+    max_widths = [
+        max(len(str(cell)) for cell in [header] + list(column))
+        for header, column in zip(headers, columns)
+    ]
+
+    def format_row(row):
+        return " | ".join(f"{str(cell).ljust(width)}" for cell, width in zip(row, max_widths))
+
+    print(format_row(headers))
+    print("-" * (sum(max_widths) + 3 * (len(headers) - 1)))  # Separator line
+
+    for row in zip_longest(*columns, fillvalue=" "):
+        print(format_row(row))
+
+    print("-" * (sum(max_widths) + 3 * (len(headers) - 1)))
+
+def oblicz(array):
+    result = []
+    current = array
+    for _ in range(len(array) - 1):
+        arr = [round(current[j] - current[j - 1], 5) for j in range(len(current) - 1, 0, -1)]
+        arr.reverse()
+        result.append(arr)
+        current = arr
+    return result
+
+def wynik(array):
+    temp = []
+    suma = 0
+    for x in array:
+        temp.append(x[-1])
+    for x in temp:
+        if temp.index(x) == 0:
+            suma += x
+        elif temp.index(x) >= 1:
+            tik = 1/(temp.index(x) + 1)
+            suma += x*tik
+    print(f"f⁽¹⁾(x) = {round(suma*(1/h),5)}")
+
+result = oblicz(y)
+columns = [x, y] + result
+print_table(*columns)
+wynik(result)
\ No newline at end of file