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How to read inputs from the user for array in python?

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               Array is a collection of similar data elements. It may be a single dimensional, two dimensional or more.. Let us create an array of elements and read inputs from the user. For this purpose, let us use the built-in functions like input(), split() and map(). Based on the data type, you can use these functions. Numpy directly converts the list into array. Python Program to read inputs from the user for 1D array:               1D array has a set of elements arranged in sequential manner. Let us create and read the input. Code: import numpy as np1 # Read the number of elements no = int(input("Enter the number of elements: ")) # Read the array of elements s_arr = list(map(int, input(f"Enter {no} numbers separated by space: ").split())) # Let us Convert to NumPy array s_arr = np1.array(s_arr) print("Array:", s_arr) Output: Enter the number of ele...
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Sum of all elements in 1D and 2D array in Python

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          This program adds the elements from beginning to end. It can be done by built-in functions or using loop. Let us discuss many methods as follows… 1D array elements: The methods are ·        Using built-in method sum () ·        Using loops ·        Using numpy Using built-in method sum (): #create an array of elements n_array = [100, 200, 300, 400, 500] #find the total from the sum() a_total = sum(n_array) #print the sum print("Sum of the elements in the array:", a_total) Output: Sum of the elements in the array: 1500 Using loops: #Array creation n_array = [11, 22, 33, 44, 55] a_total = 0 #using a for loop to find the sum for no in n_array:     a_total += no #Print the sum print("Sum of the elements are:", a_total) Output: Sum of the elements are: 165 Using Numpy:      ...
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Creation of 2D array and print the diagonal elements of the matrix in Python

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              2D array has rows and columns. The data is stored in row wise. Let us create a 2D array as follows. Python code to create a 2D array of elements: #import the built-in file numpy and develop an object np1 import numpy as np1 # Create a 2D array of elements with 2 rows and 2 columns arr_2d = np1.arange(1, 5).reshape(2, 2) #print the elements print("2D Array elements are:\n", arr_2d) here, is the output. 2D Array elements are:   [[1 2]   [3 4]] If you want to change the rows and columns to 3. Use the below code… arr_2d = np1.arange(1, 10).reshape(3, 3) It gives you the output as follows. 2D Array elements are:   [[1 2 3]   [4 5 6]   [7 8 9]] If you want to print 4 rows and columns. Let this code helps… arr_2d = np1.arange(1, 17).reshape(4, 4) The output is   2D Array elements are:   [[ 1   2   3   4]   [ 5   6   7   8] ...
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Python program to create 1D array of elements and find odd/even numbers

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               1D(single Dimensional) array is a collection of similar elements. Let us create a 1D array of elements in python as follows…. Creation of 1D array from 1 to 20: This program starts from import the built-in file “numpy” and create an object for numpy as np. Create an array as s_arr. Using the function “arange()” to assign the size. Here, we set the range as 20 members. Finally, print the array elements using print() function. Python Code: import numpy as np # Create a 1D(single dimensional) array from 1 to 20 s_arr = np.arange(1, 21) print("Here is the 1D Array:\n", s_arr) Output: Here is the 1D Array:   [ 1   2   3   4   5   6   7   8   9 10 11 12 13 14 15 16 17 18 19 20] Print Even numbers in the array:               This program imports the numpy, the built-in file. It creates the object for n...
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Arrays in python

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              An array is a basic data structure that can be implemented easily. The data is stored is of same data type. Let us implement the array in python. It can be done by three ways listed as follows…. ·        Using array module ·        Using Lists ·        Using NumPy arrays Let us create the coding samples in python. Using ‘array’ module:   This method is useful for homogeneous data. It is memory-efficient and easy to implement. ·        First import the array module. ·        An integer array   is created with elements. ·        Using ‘append’ function, add the data. ·        Using ‘remove’ function, you can able to delete the data. ·        Finally,display the data in the array....
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How to implement alarm clock in python?

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              Alarm plays an important role in everyday life. If your python program sets your alarm from your input. Here, is the code follows…. How to do it? This program starts from importing the built-in files. One is datetime and another one is time. Next one is winsound to create alarm sound. First step is to create the set_alarm code. Let us get the input from user for hour and minute to set the alarm. It is named as alarm_hour,alarm_minute. Get the time now. Set the alarm time. If the time crosses, make it for tomorrow. Otherwise, set the sound for the alarm time. Code: #import built-in files import datetime import time import winsound   def set_alarm():     # Ask user for alarm time     alarm_hour = int(input("Enter hour (0-23): "))     alarm_minute = int(input("Enter minute (0-59): "))     now = datetime.datetime.now()    ...
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How to create a To-Do list in python

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               Planning is very important for any task management. Let us create a To-Do list using python. Steps to follow: ·        This program starts with importing a built-in   file ‘os’. ·        F_NAME is the file name. it is assigned with a txt file name. ·        There are three functions. ‘load_it()’,’save_it()’,’show_it()’. ·        ‘load_it()’ opens the file if exists. Otherwise, it displays the error message. ·        ‘save_it()’ opens the file and writes the content which was given by user. ·        ‘show_it()’ displays the todo list tasks. ·        ‘main()’ function displays the options. Based on the user preference, the data is read,write and display accordingly. Code: import os F_NAME = "todolist.t...
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