Problems

1 – 50 of 64

Problem Title Likes Solvers

Select every other element of a vector

Created by: Cody Team

Tags vectors, indexing, matlab 101

14641

Who Has the Most Change?

Created by: Cody Team

Tags indexing, notice the rignt sequence of money!, poor description

5208

How to find the position of an element in a vector without using the find function

Created by: Chelsea

Tags find, indexing

2223

Return the first and last character of a string

Created by: @bmtran (Bryant Tran)

Tags strings, indexing, plus15

1047

Pattern matching

Created by: Cody Team

Tags indexing

999

QWERTY coordinates

Created by: Cody Team

Tags indexing

877

Getting the indices from a vector

Created by: Doug Hull

Tags ml101, indexing, basic matlab

822

Set the array elements whose value is 13 to 0

Created by: Aurelien Queffurust

Tags indexing, logical, logical indexing

670

Replicate elements in vectors

Created by: Jean-Marie Sainthillier

Tags vectors, indexing, basic matlab

608

Getting logical indexes

Created by: Doug Hull

Tags ml101, logical indexing, indexing

500

Matrix indexing with two vectors of indices

Created by: Nicholas Howe

Tags basic, matlab 101, indexing

372

"Low : High - Low : High - Turn around " -- Create a subindices vector

Created by: Freddy

Tags colon operator, basic matlab, indexing

230

Set some matrix elements to zero

Created by: Aurelien Queffurust

Tags indexing, matrix

196

Create an index-powered vector

Created by: Swapnali Gujar

Tags indexing, power, vector power

196

Matrix to column conversion

Created by: Swapnali Gujar

Tags indexing, column vector, matrix manipulation

187

Getting the row and column location from a matrix

Created by: Doug Hull

Tags ml101, indexing, basics

182

Getting the absolute index from a matrix

Created by: Doug Hull

Tags ml101, indexing

171

BASICS - sum part of vector

Created by: Jakub Mrowka

Tags sum, vector, easy

157

Find last zero for each column

Created by: Matthew Eicholtz

Tags matrix manipulation, indexing

131

Create an n-by-n null matrix and fill with ones certain positions

Created by: Daniel Pereira

Tags matrix, fill, sparse

125

Return a list sorted by number of consecutive occurrences

Created by: Jean-Marie Sainthillier

Tags vectors, indexing

N-Dimensional Array Slice

Created by: @bmtran (Bryant Tran)

Tags indexing

Set a diagonal

Created by: Nicholas Howe

Tags indexing, diagonals

Generate the Matrix!

Created by: JeremyR

Tags matrices, indexing, basic matlab

Try and Catch Simple Example

Created by: Pritesh Shah

Tags matlab, indexing, basic matlab

Reference Index Number

Created by: Nicholas Howe

Tags indexing

Another colon problem

Created by: Jan Orwat

Tags colon, indexing, basic

Get all corner elements from a matrix where dimension of matrix is always equal to or greater than 2.

Created by: kunal

Tags indexing

Can you reshape the matrix?

Created by: kunal

Tags indexing, There is no spoon

Find offset of given matrix element from first matrix element

Created by: Swapnali Gujar

Tags indexing, offset, basic matlab

Find the index of the first occurrence of a value in a matrix

Created by: Saurabh Harsh

Tags indexing

Change a specific color in an image

Created by: Matthew Eicholtz

Tags matrix manipulation, indexing, image processing

Where is the number that you want to find?

Created by: Iik Jae Park

Tags indexing

Replace 0 indices in array with 1's

Created by: Brian

Tags matrix, indexing, basics

Select every other element of a matrix

Created by: Edgar Guevara

Tags indexing

For a given linear index as input for n sized square matrix, find corresponding row and column.

Created by: kunal

Tags indexing

Tony's trick for duplicating an mx1 vector n times

Created by: Ted

Tags indexing, duplicating vectors

Better Index Number

Created by: Shaun VanWeelden

Tags indexing, save, leading

Cell Source Index

Created by: Nicholas Howe

Tags cells, indexing

Index one element in each vector of an array along a given dimension

Created by: Oliver Woodford

Tags indexing

Construct a "diagAdiag" matrix

Created by: Vinod Kumar Singla

Tags indexing, vectors

Don't Try, give up and return NaN.

Created by: Jan Orwat

Tags nan, basic matlab, indexing

Find offset of an element of a multi dimensional matrix

Created by: Swapnali Gujar

Tags offset, indexing, multi dimensional matrix

Find the index of nth maximum of a row vector of real numbers

Created by: Pavan Toraty

Tags indexing

Create an 8-color version of an image

Created by: Matthew Eicholtz

Tags image processing, indexing, matrix manipulation

Assignment Problem

Created by: Jerivington

Tags assignment, operations research, statistics

1 – 50 of 64

Trial software

Problem Groups $(function () { $('[data-toggle="popover"]').popover() })

Problems

Select a Web Site

How to Get Best Site Performance

Americas

Europe

Asia Pacific

Explore Products

Try or Buy

Learn to Use

Get Support

About MathWorks

Problem Groups