Projects

Calculator.py

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+""" 
+----------------------------------------
+Calculator
+----------------------------------------
+Building this project you would learn to design a graphical UI 
+and make you familiar with a library like Tkinter. This library 
+enables you to create buttons to perform different operations and 
+display results on the screen.
+----------------------------------------
+"""
+
+def addition ():
+    print("Addition")
+    n = float(input("Enter the number: "))
+    t = 0 # Total number enter
+    ans = 0
+    while n != 0:
+        ans = ans + n
+        t+=1
+        n = float(input("Enter another number (0 to calculate): "))
+    return [ans,t]
+def subtraction ():
+    print("Subtraction");
+    n = float(input("Enter the number: "))
+    t = 0 # Total number enter
+    sum = 0
+    while n != 0:
+        ans = ans - n
+        t+=1
+        n = float(input("Enter another number (0 to calculate): "))
+    return [ans,t]
+def multiplication ():
+    print("Multiplication")
+    n = float(input("Enter the number: "))
+    t = 0 #Total number enter
+    ans = 1
+    while n != 0:
+        ans = ans * n
+        t+=1
+        n = float(input("Enter another number (0 to calculate): "))
+    return [ans,t]
+def average():
+    an = []
+    an = addition()
+    t = an[1]
+    a = an[0]
+    ans = a / t
+    return [ans,t]
+# main...
+while True:
+    list = []
+    print(" My first python program!")
+    print(" Simple Calculator in python by Puranjay Savar Mattas")
+    print(" Enter 'a' for addition")
+    print(" Enter 's' for substraction")
+    print(" Enter 'm' for multiplication")
+    print(" Enter 'v' for average")
+    print(" Enter 'q' for quit")
+    c = input(" ")
+    if c != 'q':
+        if c == 'a':
+            list = addition()
+            print("Ans = ", list[0], " total inputs ",list[1])
+        elif c == 's':
+            list = subtraction()
+            print("Ans = ", list[0], " total inputs ",list[1])
+        elif c == 'm':
+            list = multiplication()
+            print("Ans = ", list[0], " total inputs ",list[1])
+        elif c == 'v':
+            list = average()
+            print("Ans = ", list[0], " total inputs ",list[1])
+        else:
+            print ("Sorry, invilid character")
+    else:
+        break