Интерактивное приложение

import tkinter as tk
from math import sqrt
from tkinter import LAST, BOTH
from tkinter import messagebox as mb
 
#______________________________________________________________________________________________________________________
rootwindow = tk.Tk()
 
rootwindow.title('Прога норм ваще такая')
 
rootwindow.geometry('1100x600')
 
#______________________________________________________________________________________________________________________
textformula = tk.Label(text='f(x) = a√(x+b)+c', font='Arial, 16', bg='black', fg='white')
textformula.place(x=10, y=10)
 
textA = tk.Label(text='Значение парметра(a) =', font='Arial, 14')
textA.place(x=10, y=50)
 
textB = tk.Label(text='Сдвиг по Ох(b) =', font='Arial, 14')
textB.place(x=10, y=90)
 
textC = tk.Label(text='Сдвиг по Оy(c) =', font='Arial, 14')
textC.place(x=10, y=130)
 
textX = tk.Label(text='Значение х =', font='Arial, 14')
textX.place(x=10, y=170)
 
#______________________________________________________________________________________________________________________
poleA = tk.Entry()
poleA.place(x=225, y=55)
 
poleB = tk.Entry()
poleB.place(x=160, y=95)
 
poleC = tk.Entry()
poleC.place(x=160, y=135)
 
poleX = tk.Entry()
poleX.place(x=140, y=175)
 
#______________________________________________________________________________________________________________________
risW = 700
risH = 600
 
risunok = tk.Canvas(width=risW, height=risH, bg='black')
risunok.place(x=400, y=0)
 
#______________________________________________________________________________________________________________________
def linii(x_left, x_right, y_top, y_bottom):
    dx = risW / (x_right - x_left)
    dy = risH / (y_top - y_bottom)
    cx = -x_left * dx
    cy = y_top * dy
    risunok.create_line(0, cy, risW, cy, fill='white', arrow=LAST)
    risunok.create_line(cx, 0, cx, risH, fill='white', arrow=BOTH)
 
 
def proverka():
    a = float(poleA.get())
    b = float(poleB.get())
    c = float(poleC.get())
    x = float(poleX.get())
    if a == 0:
        mb.showerror('Oops!','Коэффициент А не должен быть равен нулю')
    #elif x < 0:
        #mb.showerror('Oops!','Значение Х должно быть больше нуля')
    else:
        mb.showinfo('Good','Всё нормально')
 
def risunokkk():
    a = float(poleA.get())
    b = float(poleB.get())
    c = float(poleC.get())
    x = 0
    y = a*sqrt(x+b)+c
    risunok.delete('lines')
    art = []
    art.append(x-20)
    art.append(y+20)
    for x in range(1,1000):
        art.append(x)
        y = a * sqrt(x + b) + c
        art.append(y)
 
    risunok.create_line(art, tags='lines',fill='green')
 
 
 
 
x_left, x_right = -5, 15
y_top, y_bottom = -10, 10
linii(x_left, x_right, y_top, y_bottom)
#______________________________________________________________________________________________________________________
knopkaproverki = tk.Button(text='Проверить', font='Arial, 14', width=10, height=1, command=proverka)
knopkaproverki.place(x=10, y=210)
 
knopkarisunka = tk.Button(text='Нарисовать', font='Arial, 14', width=10, height=1, command=risunokkk)
knopkarisunka.place(x=140, y=210)
 
knopkaquit = tk.Button(text='Выйти', font='Arial, 16', command=quit)
knopkaquit.place(x=120, y=500)
 
 
 
 
#______________________________________________________________________________________________________________________
rootwindow.mainloop()