diff --git a/app/calculator.py b/app/calculator.py
index 668689d3..e769ea61 100644
--- a/app/calculator.py
+++ b/app/calculator.py
@@ -16,3 +16,6 @@ def divide(x, y):
 
     def abs(x):
         return x if x >= 0 else -x
+
+    def pow(x, y):
+        return x**y
diff --git a/app/test_calculator.py b/app/test_calculator.py
index 27fa8ef6..3ca4cedc 100644
--- a/app/test_calculator.py
+++ b/app/test_calculator.py
@@ -38,3 +38,9 @@ def test_abs():
     assert Calculator.abs(1) == 1
     assert Calculator.abs(-1) == 1
     assert Calculator.abs(0) == 0
+
+
+def test_pow():
+    assert Calculator.pow(2, 3) == 8
+    assert Calculator.pow(2, 0) == 1
+    assert Calculator.pow(2, -1) == 0.5