user name added

README.md

@@ -1,4 +1,5 @@
-# Math formulas
+# Math formulas - 
+### FOR **Irina-art-art**
 ## Area
 - Circle: S = πR²
 - Rectangle: S = ab

main.py

@@ -0,0 +1,16 @@
+# This is a sample Python script.
+
+# Press Shift+F10 to execute it or replace it with your code.
+# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.
+
+
+def print_hi(name):
+    # Use a breakpoint in the code line below to debug your script.
+    print(f'Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.
+
+
+# Press the green button in the gutter to run the script.
+if __name__ == '__main__':
+    print_hi('PyCharm')
+
+# See PyCharm help at https://www.jetbrains.com/help/pycharm/

square.py

@@ -4,3 +4,4 @@ def area(a):
 
 def perimeter(a):
     return 4 * a
+