Problems

1 – 12 of 12

Problem Title Likes Solvers Difficulty

Problem 43607. Logical array indexing - part 1

Created by: Chaya N

Tags indexing, matrix manipulation, logical indexing

Problem 42515. Remove All elements less than 5

Created by: Salman Shaikh

Tags logical indexing, basic matlab

111

Problem 44450. Create a magic square matrix for a given odd integer

Created by: Sushovan Basu

Tags matrix manipulation, matrix, logical indexing

Problem 694. Remove NaNs and numbers adjacent to NaNs

Created by: Richard Zapor

Tags convolution, logical indexing, boolean string magic

Problem 320. Maintain shape of logical-index mask

Created by: the cyclist

Tags logical indexing

Problem 824. Set the array elements whose value is 13 to 0

Created by: Aurelien Queffurust

Tags indexing, logical, logical indexing

1047

Problem 640. Getting logical indexes

Created by: Doug Hull

Tags indexing, logical indexing, ml101

848

Problem 868. Replace all zeros and NaNs in a matrix with the string 'error'

Created by: Ken Deeley

Tags cell arrays, logical indexing, cellfun

Problem 856. Getting the indices from a matrix

Created by: Jean-Marie Sainthillier

Tags logical indexing

425

1 – 12 of 12

Trial software

Difficulty Rating

Problem Groups

Problems

Problem 43607. Logical array indexing - part 1

Problem 42515. Remove All elements less than 5

Problem 44450. Create a magic square matrix for a given odd integer

Problem 694. Remove NaNs and numbers adjacent to NaNs

Problem 320. Maintain shape of logical-index mask

Problem 824. Set the array elements whose value is 13 to 0

Problem 640. Getting logical indexes

Problem 868. Replace all zeros and NaNs in a matrix with the string 'error'

Problem 856. Getting the indices from a matrix

Problem 1704. Triangular matrices in 3D array

Problem 1972. Convert matrix to 3D array of triangular matrices

Problem 939. DNA Pattern Match: Performance Metric - Speed