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Replace the Diagonal of a Matrix using R

Last Updated: 23 July 2025

In this article, we will learn what a is matrix and various methods to replace the diagonal of a matrix in the R Programming Language.What is a matrix?A matrix is a two-di...read more

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R Language

Python matrix-program

Python Program to Convert String Matrix Representation to Matrix

Last Updated: 23 July 2025

Given a String with matrix representation, the task here is to write a python program that converts it to a matrix.Input : test_str = "[gfg,is],[best,for],[all,geeks]"Outp...read more

Python

Python Programs

Python matrix-program

Python - Count the frequency of matrix row length

Last Updated: 23 July 2025

Given a Matrix, the task is to write a Python program to get the count frequency of its rows lengths.Input : test_list = [[6, 3, 1], [8, 9], [2], [10, 12, 7], [4, 11]]Outp...read more

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Python matrix-program

Python program to a Sort Matrix by index-value equality count

Last Updated: 23 July 2025

Given a Matrix, the task is to write a Python program that can sort its rows or columns on a measure of the number of values equal to its index number. For each row or col...read more

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Python matrix-program

Python - Convert Integer Matrix to String Matrix

Last Updated: 15 July 2025

Given a matrix with integer values, convert each element to String.Input : test_list = [[4, 5, 7], [10, 8, 3], [19, 4, 6]]Output : [['4', '5', '7'], ['10', '8', '3'], ['19...read more

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Python matrix-program

Python Program to Reverse Every Kth row in a Matrix

Last Updated: 15 July 2025

We are given a matrix (a list of lists) and an integer K. Our task is to reverse every Kth row in the matrix. For example:Input : a = [[5, 3, 2], [8, 6, 3], [3, 5, 2], [3,...read more

Python

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Python matrix-program

Python Program to Convert Tuple Matrix to Tuple List

Last Updated: 15 July 2025

Given a Tuple Matrix, flatten to tuple list with each tuple representing each column.Example:Input : test_list = [[(4, 5), (7, 8)], [(10, 13), (18, 17)]]Output : [(4, 7, 1...read more

Python

Python Programs

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Python matrix-program

Adding and Subtracting Matrices in Python

Last Updated: 22 September 2025

In this article, we will learn how to add and subtract matrices in Python using both NumPy (fast and simple) and nested loops (manual approach).For Example:Suppose we have...read more

Python

Python-numpy

Python numpy-Mathematical Function

Python matrix-program

Python - Assigning Subsequent Rows to Matrix first row elements

Last Updated: 14 March 2023

Given a (N + 1) * N Matrix, assign each column of 1st row of matrix, the subsequent row of Matrix.Input : test_list = [[5, 8, 10], [2, 0, 9], [5, 4, 2], [2, 3, 9]] Output ...read more

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Python matrix-program

Python - Group Elements in Matrix

Last Updated: 10 April 2023

Given a Matrix with two columns, group 2nd column elements on basis of 1st column.Input : test_list = [[5, 8], [2, 0], [5, 4], [2, 3], [2, 9]]Output : {5: [8, 4], 2: [0, 3...read more

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Python matrix-program

Python - Convert Matrix to Dictionary

Last Updated: 15 July 2025

The task of converting a matrix to a dictionary in Python involves transforming a 2D list or matrix into a dictionary, where each key represents a row number and the corre...read more

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Python Programs

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Python matrix-program

Python - Convert Matrix to Custom Tuple Matrix

Last Updated: 28 April 2023

Sometimes, while working with Python Matrix, we can have a problem in which we need to perform conversion of a Python Matrix to matrix of tuples which a value attached row...read more

Python

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Python tuple-programs

Python matrix-program

Python List-of-Tuples

Python - Matrix Row subset

Last Updated: 09 May 2023

Sometimes, while working with Python Matrix, one can have a problem in which, one needs to extract all the rows that are a possible subset of any row of other Matrix. This...read more

Python

Python Programs

Python list-programs

Python matrix-program

Python - Group similar elements into Matrix

Last Updated: 15 May 2023

Sometimes, while working with Python Matrix, we can have a problem in which we need to perform grouping of all the elements with are the same. This kind of problem can hav...read more

Python

Python Programs

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Python matrix-program

Python-list-of-lists

Python - Row-wise element Addition in Tuple Matrix

Last Updated: 04 September 2024

Sometimes, while working with Python tuples, we can have a problem in which we need to perform Row-wise custom elements addition in Tuple matrix. This kind of problem can ...read more

Python

Python Programs

Python tuple-programs

Python matrix-program

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