Matrix Manipulation II

Curated by : goc3

Average Problem Difficulty:

If only moving things around in real life were this easy.

Matrix Manipulation II Master

+50 points

Problem Title	Likes	Solvers
Problem 1167. matrix zigzag Created by: trekker Tags matrix conversion, compression.	11	304
Problem 1321. Given a matrix, swap the 2nd & 3rd columns Created by: Harish Maradana Tags swap	10	1134
Problem 3075. Matrix of Multiplication Facts Created by: James Tags matrix, factors, elementary_school_math	13	118
Problem 1286. MatCAT - Reconstruct X from Its X-rays Created by: Ned Gulley Tags matrices	9	121
Problem 1421. subtract central cross Created by: Marco Castelli Tags empty	6	605
Problem 1422. frame of the matrix Created by: Marco Castelli Tags frame	8	859
Problem 1429. Remove entire row and column in the matrix containing the input values Created by: Selvaraaju Murugesan Tags matrix, basic matlab	5	407
Problem 1853. Enlarge array Created by: Matthew Eicholtz Tags matrix manipulation	5	266
Problem 1898. Too Many Zeros, Dump Them! Created by: Mineralter Tags easy, unuseful zero, simplify	5	248
Problem 1972. Convert matrix to 3D array of triangular matrices Created by: Matthew Eicholtz Tags matlab, matrix manipulation, logical indexing	3	112
Problem 2063. A matrix of extroverts Created by: James Tags extroverts, not enough narcissism	3	228
Problem 2178. Matrix multiplication across rows Created by: Swapnali Gujar Tags multiplication, matrix manipulation, basic matlab	4	346
Problem 2351. Replace Nonzero Numbers with 1 Created by: Vishal Tags matrix	6	405
Problem 2442. Magnet and Iron Created by: rifat Tags matrix manipulation	6	119
Problem 2493. Must be in the front row... Created by: James Tags matrix manipulation, shifting	3	135
Problem 2701. Go to the head of the class! Created by: James Tags matrix manipulation	2	132
Problem 3094. Hankelize a matrix Created by: Peng Liu Tags toeplitz matrix, hankel matrix	5	135
Problem 42320. Write a function man that takes a row vector v and returns a matrix H as follows.. Created by: Manish Joshi Tags easy, square, matrix	1	620
Problem 42501. Toeplitize a matrix Created by: Peng Liu Tags toeplitz matrix, hankel matrix	5	127

FEATURED DISCUSSION

Primes and Rough Numbers, Basic ideas

What is a rough number? What can they be used...

John D'Errico in Tips & Tricks

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Recent Activity

	Akullo submitted Solution 14565382 to Problem 1321. Given a matrix, swap the 2nd & 3rd columns 16 hours and 53 minutes ago
	Akullo submitted Solution 14565373 to Problem 1167. matrix zigzag 17 hours and 1 minute ago
	Paul Bower submitted Solution 14565134 to Problem 1898. Too Many Zeros, Dump Them! 18 hours and 59 minutes ago
	Paul Bower submitted Solution 14565132 to Problem 1898. Too Many Zeros, Dump Them! 19 hours and 3 minutes ago
	Douw submitted Solution 14563225 to Problem 1321. Given a matrix, swap the 2nd & 3rd columns on 1 Mar 2025 at 13:40

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