diff --git a/my_first_calculator.py b/my_first_calculator.py
new file mode 100644
index 0000000..9c0777b
--- /dev/null
+++ b/my_first_calculator.py
@@ -0,0 +1,105 @@
+print('Operations are carried out only on two numbers at a time')
+print('Type "help" for help')
+
+# addition function
+def add(x, y):
+    print(x + y)
+
+
+# subtraction function
+def subtract(x, y):
+    print(x - y)
+
+
+# multiplication function
+def multiply(x, y):
+    print(x * y)
+
+
+# division function
+def divide(x, y):
+    print(x / y)
+
+
+# modulo function
+def modulo(x, y):
+    print(x % y)
+
+
+# exponentiation function
+def index(x, y):
+    print(x ** y)
+
+# circle area
+def circle_area(x):
+    print(x**2 * 3.141592654)
+
+# triangle area
+def triangle_area(x):
+    print("The result is based on the triangle height hence this calculator is limited")
+    print(0.5 * x)
+
+# rectangle area
+def rectangle_area(x, y):
+    print(x * y)
+
+def help():
+    print('WELCOME TO HELP')
+    print('Type "addition" for addition operation')
+    print('Type "subtraction" for subtraction operation')
+    print('Type "multiplication" for multiplication operation')
+    print('Type "division" for division operation')
+    print('Type "modulo" for modulo operation')
+    print('Type "exponentiation" for exponentiation operation')
+    print('Type "triangle area" for triangle area calculation')
+    print('Type "circle area" to calculate the area of a circle')
+    print('Type "rectangle area for rectangle area calculation')
+
+operation = (input("ENTER AN OPERATION :"))
+
+
+if operation == 'addition': #addition operation
+    x = float(input('ENTER YOUR FIRST NUMBER :'))   #setting the input to float to accept decimal numbers input
+    y = float(input('ENTER YOUR SECOND NUMBER :'))
+    (add(x, y)) #using the defined 'add' function above to add the numbers
+elif operation == 'subtraction': #subtraction operation
+    x = float(input('ENTER FIRST NUMBER :'))
+    y = float(input('ENTER SECOND NUMBER :'))
+    (subtract(x, y))
+elif operation == 'multiplication': #multiplication operation
+    x = float(input('ENTER FIRST NUMBER :'))
+    y = float(input('ENTER SECOND NUMBER :'))
+    (multiply(x, y))
+elif operation == 'division':
+    x = float(input('ENTER FIRST NUMBER :'))
+    y = float(input('ENTER SECOND NUMBER :'))
+    divide(x, y)
+elif operation == 'modulo': #modulo operation
+    x = float(input('ENTER FIRST NUMBER :'))
+    y = float(input('ENTER SECOND NUMBER :'))
+    (modulo(x, y))
+elif operation == 'exponentiation': #exponentiation operation
+    x = float(input('ENTER BASE NUMBER :'))
+    y = float(input('ENTER POWER NUMBER :'))
+    (index(x, y))
+elif operation == 'help':
+    help()
+elif operation == "circle area":
+    x = float(input("Enter the radius :"))
+    circle_area(x)
+elif operation == "triangle area":
+    x = float(input('Enter height of triangle :'))
+    triangle_area(x)
+elif operation == "rectangle area":
+    x = float(input('ENTER LENGTH OF TRIANGLE :'))
+    y = float(input('ENTER WIDTH OF TRIANGLE :'))
+    rectangle_area(x, y)
+else:
+    print('UNKNOWN COMMAND OR INPUT') #error handling if user input is not included in the program
+    #error handling could also be done with the try and except functions
+
+print('Thanks for using NEGA CALCULATOR. Feel free to modify and add new features')
+#Feel free to modify and add new features
+#This program will be very useful to beginers :)
+#If there are lacks in this code(program/software), you are completely free to modify, add, or remove any part of the code
+#This program is licensed under the MIT license