# -*- coding: utf-8 -*-
import tkinter as tk
import tkinter.ttk as ttk
root = tk.Tk()
root.title("tk29.py")
root.geometry("300x200")
#####################################
def mul():
    m = var1.get()*var2.get()
    lb.config(text = "Product = {}".format(m))

var1 = tk.DoubleVar()
sc1 = tk.Scale(root, variable = var1, 
    orient = 'horizontal', length =150, resolution = 0.01)
sc1.pack(anchor = tk.CENTER)
var2 = tk.DoubleVar()
sc2 = ttk.Scale(root, from_ = 0, to = 100, 
    variable = var2, orient = 'horizontal', length = 150)
sc2.pack(anchor = tk.CENTER)
ttk.Label(root, textvariable = var2).pack(anchor = tk.CENTER)
bt = ttk.Button(root, text = 'button', command = mul)
bt.pack()
lb = ttk.Label(root, text = 'label')
lb.pack()
#####################################
root.mainloop()