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 on 3 Mar 2025 at 17:56
	Akullo submitted Solution 14565373 to Problem 1167. matrix zigzag on 3 Mar 2025 at 17:49
	Paul Bower submitted Solution 14565134 to Problem 1898. Too Many Zeros, Dump Them! on 3 Mar 2025 at 15:50
	Paul Bower submitted Solution 14565132 to Problem 1898. Too Many Zeros, Dump Them! on 3 Mar 2025 at 15:46
	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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