Problems

1 – 27 of 27

Problem Title Likes Solvers Difficulty

Problem 528. Find the largest value in the 3D matrix

Created by: Bruce Raine

Tags basic matlab, 3d

1155

Problem 640. Getting logical indexes

Created by: Doug Hull

Tags indexing, logical indexing, ml101

839

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

Created by: Aurelien Queffurust

Tags indexing, logical, logical indexing

1042

Problem 963. We love vectorized solutions. Problem 1 : remove the row average.

Created by: William Smith

Tags speed, vectorized, subtraction

625

Problem 589. Matrix indexing with two vectors of indices

Created by: Nicholas Howe

Tags basic, matlab 101, indexing

551

Problem 532. Return unique values without sorting

Created by: Aurelien Queffurust

Tags unique, sorted

666

Problem 867. Replicate elements in vectors

Created by: Jean-Marie Sainthillier

Tags vectors, indexing, basic matlab

944

Problem 555. "Low : High - Low : High - Turn around " -- Create a subindices vector

Created by: Freddy

Tags indexing, colon operator, basic matlab

380

Problem 895. Generate N equally spaced intervals between -L and L

Created by: @bmtran (Bryant Tran)

Tags math, wrong_test_suite

645

Problem 584. middleAsColumn: Return all but first and last element as a column vector

Created by: Nicholas Howe

Tags matlab 101, basics

448

Problem 838. Check if number exists in vector

Created by: Nichlas

Tags vectors, basic matlab

5840

Problem 307. First non-zero element in each column

Created by: Julio

Tags matrix, poor_test_suite

668

Problem 676. Reindex a vector

Created by: James

Tags handling vectors, indices

530

Problem 856. Getting the indices from a matrix

Created by: Jean-Marie Sainthillier

Tags logical indexing

421

Problem 367. Specific Element Count

Created by: @bmtran (Bryant Tran)

Tags counting, sum, occurrences

688

Problem 690. Remove the two elements next to NaN value

Created by: Aurelien Queffurust

Tags nan, meshgrid, binary operation

480

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Created by: Aurelien Queffurust

Tags diagonal, diag, anti-diagonal

336

Problem 576. Return elements unique to either input

Created by: James

Tags vectors, differences, numeric inputs

613

Problem 924. intersection of matrices

Created by: Richard

Tags matrix, poor_problem_statement

400

Problem 830. Fill a zeros matrix

Created by: Aurelien Queffurust

Tags logical operations

451

Problem 652. Put two time series onto the same time basis

Created by: Ned Gulley

Tags interpolation, time series

210

Problem 795. Joining Ranges

Created by: Dirk Engel

Tags sorting, matrix manipulation, numeric inputs

222

Problem 970. Piecewise linear interpolation

Created by: James

Tags interpolation, piecewise

360

Problem 885. Create logical matrix with a specific row and column sums

Created by: Amro

Tags matrix, logical, sum

214

Problem 875. Return a list sorted by number of consecutive occurrences

Created by: Jean-Marie Sainthillier

Tags vectors, indexing

215

Problem 801. Construct an index vector from two input vectors in vectorized fashion

Created by: Christopher

Tags matrix manipulation, vectorization, poor_test_suite

221

Problem 672. Longest run of consecutive numbers

Created by: James

Tags vectors, consecutive, repeating

105

2509

1 – 27 of 27

Trial software

Difficulty Rating

Problem Groups

Problems

Problem 528. Find the largest value in the 3D matrix

Problem 640. Getting logical indexes

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

Problem 963. We love vectorized solutions. Problem 1 : remove the row average.

Problem 589. Matrix indexing with two vectors of indices

Problem 532. Return unique values without sorting

Problem 867. Replicate elements in vectors

Problem 555. "Low : High - Low : High - Turn around " -- Create a subindices vector

Problem 895. Generate N equally spaced intervals between -L and L

Problem 584. middleAsColumn: Return all but first and last element as a column vector

Problem 838. Check if number exists in vector

Problem 307. First non-zero element in each column

Problem 676. Reindex a vector

Problem 856. Getting the indices from a matrix

Problem 367. Specific Element Count

Problem 690. Remove the two elements next to NaN value

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Problem 576. Return elements unique to either input

Problem 924. intersection of matrices

Problem 830. Fill a zeros matrix

Problem 652. Put two time series onto the same time basis

Problem 795. Joining Ranges

Problem 970. Piecewise linear interpolation

Problem 885. Create logical matrix with a specific row and column sums

Problem 875. Return a list sorted by number of consecutive occurrences

Problem 801. Construct an index vector from two input vectors in vectorized fashion

Problem 672. Longest run of consecutive numbers