As There are 3 program contain the python codes and using numpy and random module there are 3 program are designed as :
Here the calculator is designed by using python numpy module.
Here the game is designed for single player where the player can play this game with computer and using random module of python computer generate the random choise and this will run untill user deside to exit.
Here this program generate the random password using this random module of python and the user can decide the length of password and the password contain the number and alphabets.