Python Program to Make GUI Calculator
GUI of a Calculator Which will help to add, subtract , Multiply and divide
Python
# pip install tkinterimport tkinter as tkimport tkinter.messageboxfrom tkinter.constants import SUNKENwindow = tk.Tk()window.title('Calculator-w3wiki')frame = tk.Frame(master=window, bg="skyblue", padx=10)frame.pack()entry = tk.Entry(master=frame, relief=SUNKEN, borderwidth=3, width=30)entry.grid(row=0, column=0, columnspan=3, ipady=2, pady=2)def myclick(number): entry.insert(tk.END, number)def equal(): try: y = str(eval(entry.get())) entry.delete(0, tk.END) entry.insert(0, y) except: tkinter.messagebox.showinfo("Error", "Syntax Error")def clear(): entry.delete(0, tk.END)button_1 = tk.Button(master=frame, text='1', padx=15, pady=5, width=3, command=lambda: myclick(1))button_1.grid(row=1, column=0, pady=2)button_2 = tk.Button(master=frame, text='2', padx=15, pady=5, width=3, command=lambda: myclick(2))button_2.grid(row=1, column=1, pady=2)button_3 = tk.Button(master=frame, text='3', padx=15, pady=5, width=3, command=lambda: myclick(3))button_3.grid(row=1, column=2, pady=2)button_4 = tk.Button(master=frame, text='4', padx=15, pady=5, width=3, command=lambda: myclick(4))button_4.grid(row=2, column=0, pady=2)button_5 = tk.Button(master=frame, text='5', padx=15, pady=5, width=3, command=lambda: myclick(5))button_5.grid(row=2, column=1, pady=2)button_6 = tk.Button(master=frame, text='6', padx=15, pady=5, width=3, command=lambda: myclick(6))button_6.grid(row=2, column=2, pady=2)button_7 = tk.Button(master=frame, text='7', padx=15, pady=5, width=3, command=lambda: myclick(7))button_7.grid(row=3, column=0, pady=2)button_8 = tk.Button(master=frame, text='8', padx=15, pady=5, width=3, command=lambda: myclick(8))button_8.grid(row=3, column=1, pady=2)button_9 = tk.Button(master=frame, text='9', padx=15, pady=5, width=3, command=lambda: myclick(9))button_9.grid(row=3, column=2, pady=2)button_0 = tk.Button(master=frame, text='0', padx=15, pady=5, width=3, command=lambda: myclick(0))button_0.grid(row=4, column=1, pady=2)button_add = tk.Button(master=frame, text="+", padx=15, pady=5, width=3, command=lambda: myclick('+'))button_add.grid(row=5, column=0, pady=2)button_subtract = tk.Button( master=frame, text="-", padx=15, pady=5, width=3, command=lambda: myclick('-'))button_subtract.grid(row=5, column=1, pady=2)button_multiply = tk.Button( master=frame, text="*", padx=15, pady=5, width=3, command=lambda: myclick('*'))button_multiply.grid(row=5, column=2, pady=2)button_div = tk.Button(master=frame, text="/", padx=15, pady=5, width=3, command=lambda: myclick('/'))button_div.grid(row=6, column=0, pady=2)button_clear = tk.Button(master=frame, text="clear", padx=15, pady=5, width=12, command=clear)button_clear.grid(row=6, column=1, columnspan=2, pady=2)button_equal = tk.Button(master=frame, text="=", padx=15, pady=5, width=9, command=equal)button_equal.grid(row=7, column=0, columnspan=3, pady=2)window.mainloop() |
Output:
Time complexity:
The time complexity of this calculator depends on the number of operations involved in the calculation. The basic operations such as addition, subtraction, multiplication and division take O(1) time complexity. For more complex calculations involving multiple operations, the time complexity will be higher.
Space complexity:
The space complexity of this calculator is O(1). This is because the calculator only needs to store the user input and the result of the calculation which can be done in a fixed amount of memory.
Python Program to Make a Simple Calculator
Here we will be making a simple calculator in which we can perform basic arithmetic operations like addition, subtraction, multiplication, or division.
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