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In this article we are going to learn how to check whether the input matrix is a Markov Matrix using nested for loops and sum() function. Before that let us understand what is Markov Matrix with an example? The matrix is said to be a Markov matrix if the sum of each row is equal to 1. Example [ [ 0, 1, 0 ], [ 0, 0.3, 0.7 ], [ 0, 0, 1 ]] In the above example, the sum of each row is 1. Hence the above matrix is an example of a Markov ... Read More
If a matrix produces the same matrix when multiplied by itself, it is said to be an idempotent matrix. If and only if M * M = M, the matrix M is considered to be an idempotent matrix. Where M is a square matrix in the idempotent matrix. Matrix M: 1 0 0 0 1 0 0 0 0 Performing M*M 1 0 0 * 1 0 0 = 1 0 0 0 1 0 0 1 0 ... Read More
A binary matrix is a rectangular grid in which each element is either 0 or 1, indicating true or false states. It is widely employed to represent relationships, connectivity, and patterns across various disciplines Assume we have taken a 2D binary input matrix containing N rows and M columns. T. We will now check whether the input matrix is horizontal or vertically symmetric or both using the below method. If the first row matches the last row, the second row matches the second last row, and so on, the matrix is said to be horizontally symmetric. If the first ... Read More
The K is the special number that set the sum of the difference values starting with 0th index. For example, if k = 3 it means the 0th index added with K and finds the exact pairs. In Python, we have some built-in functions such as str(), len(), and append() will be used to solve the K difference index pairing in list. Let’s take an example of list. The given list, [“A”, “B”, “C”, “D”, “E”, “F”] Then the K value set to 1 The final output pair the index as [“AC”, “BD”, “CE”, ... Read More
The N number is the special number of integer type that calculates the individual digit of sum. So, this sum will be divisible by its own number. Let’s take an example of this. The given integer number, N = 36 The sum of each digit, 3 + 6 = 9 Therefore, 36 is successfully divisible by 9 and it verifies for N divides it. Algorithm The following steps are- Step 1: We will start the program by mentioning the header file iostream. Step 2: Common Matches:- Then used the function definition digit_sum() that accepts the parameter a variable n ... Read More
Python’s Pandas DataFrame defines the two-dimensional structure that consists of rows and columns. The main feature of pandas is an easier way of handing the given data. In Python, we have some in-built functions such as to_datetime(), sorted(), lambda, and, sort_value() will be Sort a Pandas DataFrame by Date. Syntax The following syntax is used in the examples- to_datetime() The to_datetime() is an in-built function in Python that convert string dates into date-time objects. sorted() The built-in function sorted() of Python states that the list can be sort as specified iterable objects. lambda This lambda function in ... Read More
The problem statement allows us to determine the position of the desired string in the list, which can be useful for various purposes, such as accessing or manipulating elements at that specific index. In Python, we have some built-in functions like reduce(), str(), filter(), lambda, and, all() that will be used to Find Index Containing String in List. Syntax The following syntax is used in the examples- reduce() This function is defined under the functools module str() This is a built-in method in Python that can convert the specified value into a string. filter() The ... Read More
A sentence is a group of words that are present in a string. In this problem statement, we need to set a specific word and check whether the word is present in a given string or not. In C++, we have some pre-defined functions such as find(), npos(), and istringstream() will be used to Check if a word is present in a sentence. Using Standard library Function The program uses a standard library function that allows the programmer to use pre-existing functions of the C compiler such as find() and npos() to perform certain tasks. Syntax The following syntax is ... Read More
The palindrome refers to same number when the digits are reversed. In this program, we need to set the condition and operation based on an even number of digits to identify whether the given input satisfied for palindrome or not. In C++, we have STL(Standard template library) functions such as to_string(), length(), rbegin(), rend(), and, push_back() will be used to Check if a number with an even number of digits is palindrome or not. For example- 2662, 42124, 44, 888, etc are satisfied for even digit palindrome numbers. Using for loop and if-else statement The program uses for loop to ... Read More
PHP: PHP (Hypertext Preprocessor) is a widely-used open-source server-side scripting language that is specifically designed for web development. It was originally created by Rasmus Lerdorf in 1994 and has since evolved into a powerful language used by millions of developers worldwide. PHP is primarily used to develop dynamic web pages and web applications. It allows developers to embed PHP code within HTML, making it easy to mix server-side logic with the presentation layer. PHP scripts are executed on the server, and the resulting HTML is sent to the client's browser. To test a URL for a 404 error ... Read More