diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..71e4f7c
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,11 @@
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+
+[dev-packages]
+
+[requires]
+python_version = "3.9"
diff --git a/python/src/main.py b/python/src/main.py
index e37a77c..2129998 100644
--- a/python/src/main.py
+++ b/python/src/main.py
@@ -1,3 +1,6 @@
+import math
+
+
 def summ(a: int, b: int) -> int:
     return a + b
 
@@ -5,3 +8,31 @@ def summ(a: int, b: int) -> int:
 if __name__ == "__main__":
     print("Hello world")
     print(summ(3, 4))
+
+
+def laba_v_17_1(a: float, b: float, x_start: float, x_end: float, step: float):
+    y = None
+    while x_start <= x_end:
+        try:
+            y = (a + (math.tan(b * x_start) ** 2)) / (b + ((math.sin(a * x_start)) / (math.cos(a * x_start))) ** 2)
+        except Exception as Error:
+            print(Error, x_start)
+        x_start += step
+        print(y)
+
+
+def laba_v_17_2(app: list, a: float, b: float):
+    for x in app:
+        y = (a + (math.tan(b * x) ** 2)) / (b + ((math.sin(a * x)) / (math.cos(a * x))) ** 2)
+        print(y)
+
+
+if "__main__" != __name__:
+    pass
+else:
+    print('1')
+    laba_v_17_1(0.1, 0.5, 0.15, 1.37, 0.25)
+
+    print('2')
+
+    laba_v_17_2([0.2, 0.3, 0.44, 0.6, 0.56], 0.1, 0.5)