#            Scientific Calculator           #

from tkinter import *
import math
import parser
import tkinter.messagebox

root = Tk()
root.title("Scientific Calculator")
root.configure(background = 'white')
root.resizable(width=False, height=False)
root.geometry("480x568+450+90")
#root.iconbitmap(r'D:\A Electrical Engineering Data\1st Semester\Python\Spyder\Lab\Calculator\Wwalczyszyn-Android-Style-Honeycomb-Calculator.ico')

calc = Frame(root)
calc.grid()

# ===================================================================================================== #

# Here are the Classes for all the Buttons in the Scientific Calculator.

class Calc():
    def __init__(self):
        self.total=0
        self.current=''
        self.input_value=True
        self.check_sum=False
        self.op=''
        self.result=False

    def numberEnter(self, num):
        self.result=False
        firstnum=txtDisplay.get()
        secondnum=str(num)
        if self.input_value:
            self.current = secondnum
            self.input_value=False
        else:
            if secondnum == '.':
                if secondnum in firstnum:
                    return
            self.current = firstnum+secondnum
        self.display(self.current)

    def sum_of_total(self):
        self.result=True
        self.current=float(self.current)
        if self.check_sum==True:
            self.valid_function()
        else:
            self.total=float(txtDisplay.get())

    def display(self, value):
        txtDisplay.delete(0, END)
        txtDisplay.insert(0, value)

    def valid_function(self):
        if self.op == "add":
            self.total += self.current
        if self.op == "sub":
            self.total -= self.current
        if self.op == "multi":
            self.total *= self.current
        if self.op == "divide":
            self.total /= self.current
        if self.op == "mod":
            self.total %= self.current
        self.input_value=True
        self.check_sum=False
        self.display(self.total)

    def operation(self, op):
        self.current = float(self.current)
        if self.check_sum:
            self.valid_function()
        elif not self.result:
            self.total=self.current
            self.input_value=True
        self.check_sum=True
        self.op=op
        self.result=False

    def Clear_Entry(self):
        self.result = False
        self.current = "0"
        self.display(0)
        self.input_value=True

    def All_Clear_Entry(self):
        self.Clear_Entry()
        self.total=0

    def pi(self):
        self.result =  False
        self.current = math.pi
        self.display(self.current)

    def tau(self):
        self.result =  False
        self.current = math.tau
        self.display(self.current)

    def e(self):
        self.result =  False
        self.current = math.e
        self.display(self.current)

    def mathPM(self):
        self.result = False
        self.current = -(float(txtDisplay.get()))
        self.display(self.current)

    def squared(self):
        self.result = False
        self.current = math.sqrt(float(txtDisplay.get()))
        self.display(self.current)

    def cos(self):
        self.result = False
        self.current = math.cos(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def cosh(self):
        self.result = False
        self.current = math.cosh(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def tan(self):
        self.result = False
        self.current = math.tan(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def tanh(self):
        self.result = False
        self.current = math.tanh(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def sin(self):
        self.result = False
        self.current = math.sin(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def sinh(self):
        self.result = False
        self.current = math.sinh(math.radians(float(txtDisplay.get())))
        self.display(self.current)

    def log(self):
        self.result = False
        self.current = math.log(float(txtDisplay.get()))
        self.display(self.current)

    def exp(self):
        self.result = False
        self.current = math.exp(float(txtDisplay.get()))
        self.display(self.current)

    def acosh(self):
        self.result = False
        self.current = math.acosh(float(txtDisplay.get()))
        self.display(self.current)

    def asinh(self):
        self.result = False
        self.current = math.asinh(float(txtDisplay.get()))
        self.display(self.current)

    def expm1(self):
        self.result = False
        self.current = math.expm1(float(txtDisplay.get()))
        self.display(self.current)

    def lgamma(self):
        self.result = False
        self.current = math.lgamma(float(txtDisplay.get()))
        self.display(self.current)

    def degrees(self):
        self.result = False
        self.current = math.degrees(float(txtDisplay.get()))
        self.display(self.current)

    def log2(self):
        self.result = False
        self.current = math.log2(float(txtDisplay.get()))
        self.display(self.current)

    def log10(self):
        self.result = False
        self.current = math.log10(float(txtDisplay.get()))
        self.display(self.current)

    def log1p(self):
        self.result = False
        self.current = math.log1p(float(txtDisplay.get()))
        self.display(self.current)

added_value = Calc()

# ====================================================================================================== #

# Here is the code for Display of Calculator.

txtDisplay = Entry(calc, font=('Helvetica',20,'bold'),bg='black',fg='white', bd=30,
                   width=28,justify=RIGHT)
txtDisplay.grid(row=0,column=0, columnspan=4, pady=1)
txtDisplay.insert(0,"0")

# ====================================================================================================== #

# Here is the code for NUMBER PAD in Calculator.

numberpad = "789456123"
i=0
btn = []
for j in range(2,5):
    for k in range(3):
        btn.append(Button(calc, width=6, height=2, bg='white',fg='black', font=('Helvetica',20,'bold'),
                          bd=4,text=numberpad[i]))
        btn[i].grid(row=j, column= k, pady = 1)
        btn[i]["command"]=lambda x=numberpad[i]:added_value.numberEnter(x)
        i+=1
        
# ====================================================================================================== #

# Here is the code for Button of Standard Calulator.

btnClear = Button(calc, text=chr(67),width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold')
                  ,bd=4, command=added_value.Clear_Entry).grid(row=1, column= 0, pady = 1)

btnAllClear = Button(calc, text=chr(67)+chr(69),width=6, height=2,bg='black',fg='white', font=('Helvetica'
            ,20,'bold'),bd=4,command=added_value.All_Clear_Entry).grid(row=1, column= 1, pady = 1)

btnsq = Button(calc, text="\u221A",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.squared).grid(row=1, column= 2, pady = 1)

btnAdd = Button(calc, text="+",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.operation("add")
                ).grid(row=1, column= 3, pady = 1)

btnSub = Button(calc, text="-",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.operation("sub")
                ).grid(row=2, column= 3, pady = 1)

btnMul = Button(calc, text="x",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.operation("multi")
                ).grid(row=3, column= 3, pady = 1)

btnDiv = Button(calc, text="/",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.operation("divide")
                ).grid(row=4, column= 3, pady = 1)

btnZero = Button(calc, text="0",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.numberEnter(0)
                 ).grid(row=5, column= 0, pady = 1)

btnDot = Button(calc, text=".",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.numberEnter(".")
                ).grid(row=5, column= 1, pady = 1)
btnPM = Button(calc, text=chr(177),width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.mathPM).grid(row=5, column= 2, pady = 1)

btnEquals = Button(calc, text="=",width=6, height=2,bg='black',fg='white', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.sum_of_total).grid(row=5, column= 3, pady = 1)

# ===================================================================================================== #

# Here is the code for Buttons of Scientific Calulator.

# Here i make the rows for the Button of Scientific Calulator.

# ROW 1 :

btnPi = Button(calc, text="pi",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.pi).grid(row=1, column= 4, pady = 1)

btnCos = Button(calc, text="Cos",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.cos).grid(row=1, column= 5, pady = 1)

btntan = Button(calc, text="tan",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.tan).grid(row=1, column= 6, pady = 1)

btnsin = Button(calc, text="sin",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.sin).grid(row=1, column= 7, pady = 1)

# **************************************************************************************************** #

# ROW 2 :

btn2Pi = Button(calc, text="2pi",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.tau).grid(row=2, column= 4, pady = 1)

btnCosh = Button(calc, text="Cosh",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.cosh).grid(row=2, column= 5, pady = 1)

btntanh = Button(calc, text="tanh",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.tanh).grid(row=2, column= 6, pady = 1)

btnsinh = Button(calc, text="sinh",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.sinh).grid(row=2, column= 7, pady = 1)

#******************************************************************************************************#

# ROW 3 :

btnlog = Button(calc, text="log",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.log).grid(row=3, column= 4, pady = 1)

btnExp = Button(calc, text="exp",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.exp).grid(row=3, column= 5, pady = 1)

btnMod = Button(calc, text="Mod",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=lambda:added_value.operation("mod")
                ).grid(row=3, column= 6, pady = 1)

btnE = Button(calc, text="e",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.e).grid(row=3, column= 7, pady = 1)

#******************************************************************************************************#

# ROW 4 :

btnlog10 = Button(calc, text="log10",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold')
                  ,bd=4,command=added_value.log10).grid(row=4, column= 4, pady = 1)

btncos = Button(calc, text="log1p",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.log1p).grid(row=4, column= 5, pady = 1)

btnexpm1 = Button(calc, text="expm1",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold')
                  ,bd=4,command=added_value.expm1).grid(row=4, column= 6, pady = 1)

btngamma = Button(calc, text="gamma",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold')
                  ,bd=4,command=added_value.lgamma).grid(row=4, column= 7, pady = 1)

#******************************************************************************************************#

# ROW 5 :

btnlog2 = Button(calc, text="log2",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.log2).grid(row=5, column= 4, pady = 1)

btndeg = Button(calc, text="deg",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.degrees).grid(row=5, column= 5, pady = 1)

btnacosh = Button(calc, text="acosh",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.acosh).grid(row=5, column= 6, pady = 1)

btnasinh = Button(calc, text="asinh",width=6, height=2,bg='white',fg='black', font=('Helvetica',20,'bold'),
                  bd=4,command=added_value.asinh).grid(row=5, column= 7, pady = 1)

lblDisplay = Label(calc, text = "Scientific Calculator",font=('Helvetica',30,'bold'),
                   bg='black',fg='white',justify=CENTER)
lblDisplay.grid(row=0, column= 4,columnspan=4)

# ====================================================================================================== #

# Here are the fucntions for ManuBar.

def iExit():
    iExit = tkinter.messagebox.askyesno("Scientific Calculator","Do you want to exit ?")
    if iExit>0:
        root.destroy()
        return

def Scientific():
    root.resizable(width=False, height=False)
    root.geometry("944x568+0+0")


def Standard():
    root.resizable(width=False, height=False)
    root.geometry("480x568+0+0")


filemenu = Menu(menubar, tearoff = 0)
menubar.add_cascade(label = 'File', menu = filemenu)
filemenu.add_command(label = "Standard", command = Standard)
filemenu.add_command(label = "Scientific", command = Scientific)
filemenu.add_separator()
filemenu.add_command(label = "Exit", command = iExit)

# ManuBar 2 :

editmenu = Menu(menubar, tearoff = 0)
menubar.add_cascade(label = 'Edit', menu = editmenu)
editmenu.add_command(label = "Cut")
editmenu.add_command(label = "Copy")
editmenu.add_separator()
editmenu.add_command(label = "Paste")

root.config(menu=menubar)

root.mainloop()
 

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Python is a very popular general-purpose programming language which was created by Guido van Rossum, and released in 1991. It is very popular for web development and you can build almost anything like mobile apps, web apps, tools, data analytics, machine learning etc. It is designed to be simple and easy like english language. It's is highly productive and efficient making it a very popular language.

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print(myTuple)
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NameDescription
NumPyNumPy python library helps users to work on arrays with ease
SciPySciPy is a scientific computation library which depends on NumPy for convenient and fast N-dimensional array manipulation
SKLearn/Scikit-learnScikit-learn or Scikit-learn is the most useful library for machine learning in Python
PandasPandas is the most efficient Python library for data manipulation and analysis
DOcplexDOcplex is IBM Decision Optimization CPLEX Modeling for Python, is a library composed of Mathematical Programming Modeling and Constraint Programming Modeling