Python program to find day of birth

import datetime
y = input("Enter year of Birth: ");
m = input("Enter month of Birth: ");
d = input("Enter date of Birth: ");
mydate = datetime.date(int(y),int(m),int(d))
print(mydate.strftime("%A"))

Python program to shutdown and restart computer

import os;
check = input("Want to shutdown your computer ? (y/n): ");
if check == 'n':
    check = input("Want to restart your computer ? (y/n): ");
    if check == 'y':
        os.system("shutdown /r /t 1");
    else:
        exit();
else:
    os.system("shutdown /s /t 1");

Python program for reading an excel file

import xlrd
loc=("your own excel path with double slash at drive name like C:\\")
wb = xlrd.open_workbook(loc)
sheet = wb.sheet_by_index(0)
print ("The value of Row 0 and Column 0 is", sheet.cell_value(0, 0))
print("No of Rows in the current sheet is",sheet.nrows)
print("No of Columns in the current sheet is",sheet.ncols)
print("Extracting all columns name in the current sheet")
for i in range(sheet.ncols):
    print(sheet.cell_value(0, i))
print("Extracting first column in the current sheet")
for i in range(sheet.nrows):
    print(sheet.cell_value(i, 0))
print("Extracting rowwise content in the current sheet")
for i in range(sheet.nrows):
    print(sheet.row_values(i))

Python programt for finding ports opened in the website domain


import socket;
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
result = sock.connect_ex(('www.example.com', port number))
if result == 0:
   print ("Port is open")
else:
   print ("Port is not open")

Python program to print Hostname, IP, MAC address

import uuid
import socket  
hostname = socket.gethostname()  
IPAddr = socket.gethostbyname(hostname)  
print("The Name of this device is:        " + hostname)  
print("The IP Address of this device is:  " + IPAddr)  
print ("The MAC address of this device is:",hex(uuid.getnode()))

Python programto find Sine and Cosine Values plot using Matplotlib

import numpy as np
import matplotlib.pyplot as plt
x=np.linspace(0,1)
data1 = np.sin(x)
data2 = np.cos(x)
fig, ax1 = plt.subplots()
color = 'tab:red'
ax1.set_xlabel('x')
ax1.set_ylabel('sine', color=color)
ax1.plot(x, data1, color=color)
ax1.tick_params(axis='y', labelcolor=color)
ax2 = ax1.twinx()
color = 'tab:green'
ax2.set_ylabel('cosine', color=color)
ax2.plot(x, data2, color=color)
ax2.tick_params(axis='y', labelcolor=color)
plt.show()




#Simple Implementation
#---------------------------------------------------------------------
import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(-np.pi, np.pi, 256, endpoint=True)
c= np.cos(x)
s= np.sin(x)
plt.plot(x,c)
plt.plot(x,s)
plt.show()

Solving linear mathematical equations with two variable

import numpy as np
A=np.array([[1.5,1],[3.75,4]])
B=np.array([1800,900])
x=np.linalg.solve(A,B)
print("Values of A and B variables:",x)
h=np.allclose(np.dot(A, x), B)
print("Substitution of two variables in equation to validate:",h)

Operations on Matrices using Python program

import numpy as np
A = np.array([[4,1,7],[2,1,8],[3 ,7,1]])
B = np.array([[6,1,1],[2,1,5],[2,3,1]])
C=A.dot(B)
print("Values of First 2D Matrix\n",A)
print("Values of Second 2D Matrix\n",B)
print("---------------------------------------------")
print("Multiplication of Matrices\n",C)
print("\n")
Ainv=np.linalg.inv(A)
Binv=np.linalg.inv(B)
print("Inverse of First Matrix\n",Ainv)
print("Inverse of Second Matrix\n",Binv)
print("\n")
AI=Ainv.dot(A)
BI=Binv.dot(B)
print("Multiplication of First Matrix and their Inverse\n",AI)
print("Multiplication of Second Matrix and their Inverse\n",BI)
AD=np.linalg.det(A)
BD=np.linalg.det(B)
print("\n")
print("Determinant of First Matricx:",AD)
print("Determinant of Second Matricx:",BD)
print("\n")
ADi=np.diag(A)
BDi=np.diag(B)
print("Diagonal Elements of First Matrix:",ADi)
print("Diagonal Elements of Second Matrix:",BDi)
SADi=np.trace(A)
SBDi=np.trace(B)
print("\n")
print("Sum of Diagonal Elements of First Matrix:",SADi)
print("Sum of Diagonal Elements of Second Matrix:",SBDi)
print("\n")
CA=np.cov(A)
CB=np.cov(B)
print("Covariance matrix of First Matrix\n",CA)
print("Covariance matrix of Second Matrix\n",CB)
print("\n")
ECA=np.linalg.eigh(CA)
ECB=np.linalg.eigh(CB)
print("First array represents eigenvalues and second array represents eigenvectors")
print("\n")
print("covariance matrix eigenvalues eigenvectors of First Matrix\n",ECA)
print("\n")
print("covariance matrix eigenvalues eigenvectors of Second Matrix\n",ECB)

Temperature Conversion Table

def Fah():
    F=int(input('Enter the temperature on Fahrenheit(F)'))
    C=(F - 32) * 5/9
    K=(F - 32) * 5/9 + 273.15
    print("Fahrenheit Value :",F)
    print("Celsius Value :",C)
    print("Kelvin Value:",K)

def Cel():
    C=int(input('Enter the temperature on Celsius(C)'))
    F=(C * 9/5) + 32
    K=C + 273.15
    print("Fahrenheit Value :",F)
    print("Celsius Value :",C)
    print("Kelvin Value:",K)

def Kel():
    K=int(input('Enter the temperature on Kelvin(K)'))
    F=(K - 273.15) * 9/5 + 32
    C=K - 273.15
    print("Fahrenheit Value :",F)
    print("Celsius Value :",C)
    print("Kelvin Value:",K)
print("\n")
print('1.Fahrenheit to Celsius & Kelvin\n2.Celsius to Fahrenheit & Kelvin\n3.Kelvin to Fahrenheit & Celsius\n4.Exit')
n=int(input('Enter the choice:'))
if n==1:
      Fah()      
elif n==2:
      Cel()   
elif n==3:
      Kel()      
elif n==4:
      exit()
else:
      print('Invalid options')