Problems

1 – 10 of 10

Problem Title Likes Solvers Difficulty

Problem 3073. Projector Matrix

Created by: goc3

Tags matrix, projector, idempotent

Problem 2130. Orthonormal matrix

Created by: Abdullah Caliskan

Tags matrix

132

Problem 44509. Determine if input is a valid AHP evaluation matrix

Created by: Mehmet OZC

Tags logical, check

Problem 42384. Combined Ages 2 - Symmetric, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

Problem 451. Is this matrix orthogonal?

Created by: Bruce Raine

Tags orthogonal

288

Problem 615. Nilpotent matrix

Created by: Grzegorz Knor

Tags matrix

139

Problem 258. linear least squares fitting

Created by: Tomasz

Tags fit, optimization, least squares

Problem 42385. Combined Ages 4 - Non-symmetric with multiples, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

Problem 44258. Outer product of multiple vectors

Created by: Andrew Newell

Tags linear algebra, outer product

Problem 42383. Combined Ages 3 - Non-symmetric, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

1 – 10 of 10

Difficulty Rating

Problem Groups

Difficulty Rating

Problem Groups

Problems

Problem 3073. Projector Matrix

Problem 2130. Orthonormal matrix

Problem 44509. Determine if input is a valid AHP evaluation matrix

Problem 42384. Combined Ages 2 - Symmetric, n ≥ 3

Problem 451. Is this matrix orthogonal?

Problem 615. Nilpotent matrix

Problem 258. linear least squares fitting

Problem 42385. Combined Ages 4 - Non-symmetric with multiples, n ≥ 3

Problem 44258. Outer product of multiple vectors

Problem 42383. Combined Ages 3 - Non-symmetric, n ≥ 3