diff --git a/Week03/functions_sinem_gencer.py b/Week03/functions_sinem_gencer.py
new file mode 100644
index 00000000..550e9758
--- /dev/null
+++ b/Week03/functions_sinem_gencer.py
@@ -0,0 +1,50 @@
+from typing import Tuple, Dict
+
+custom_power = lambda x=0, /, e=1 : x**e
+"""
+Function to take power of a value.
+:param x: Value that is being taken the power of.
+:type x: float
+:param e: Value that is the power.
+:type e: float
+:return: The result of equation x^e
+"""
+
+def custom_equation(x: int = 0, y: int = 0, /, a: int = 1, b: int = 1, *, c: int = 1) -> float:
+  """
+  Function to calculate an equation and return float type value.
+  :param x: Default value 0, positional-only.
+  :type x: int
+  :param y: Default value 0, positional-only.
+  :type y: int
+  :param a: Default value 1, positional and keyword.
+  :type a: int
+  :param b: Default value 1, positional and keyword.
+  :type b: int
+  :param c: Default value 1, keyword only.
+  :type c: int
+  :return: The result of equation.
+  :rtype: float
+  """
+  return (x**a + y**b) / c
+
+caller_counts = {}
+
+def fn_w_caller() -> Tuple[int, Dict[str, int]]:
+    """
+    Function to return the number of calls with caller information.
+    :return: A tuple containing an integer (total number of calls) and a dictionary (key: caller __name__, value: number of calls)
+    :rtype: Tuple[int, Dict[str, int]]
+    """
+    caller_name = __name__
+    caller_counts[caller_name] = caller_counts.get(caller_name, 0) + 1
+    total_calls = sum(caller_counts.values())
+    return total_calls, {caller_name: caller_counts[caller_name]}
+
+
+
+
+
+
+
+