Problem Groups

The Community group contains problems contributed by Cody players. The Cody Challenge group contains problems created by the Cody administrator.

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Community

Problems submitted by members of the MATLAB Central community.

111Solvers

Get the length of a given vector

Created by Yudong Zhang

Tags

basicic matlab, length, vector

Problem Group

Community
110Solvers

Count from 0 to N^M in base N.

Created by Chris

Tags

odd bases, counting

Problem Group

Community
106Solvers

Convert a vector into a number

Created by Doug Hull

Tags

ml101

Problem Group

Community
99Solvers

Number of 1s in a binary string

Created by Srivardhini

Tags

sum, binary

Problem Group

Community
98Solvers

Determine Whether an array is empty

Created by Yudong Zhang

Tags

determine, empty, matrix

Problem Group

Community
97Solvers

Filter AC, pass DC

Created by Amitava Biswas

Tags

acdc

Problem Group

Community
89Solvers

Compute a dot product of two vectors x and y

Created by Evgeny

Tags

linear algebra

Problem Group

Community
89Solvers

Rotate a Matrix by 90 degrees

Created by Reza Ahmadzadeh

Tags

matrix

Problem Group

Community
89Solvers

Whether the input is vector?

Created by Sangeeta

Tags

vector

Problem Group

Community
88Solvers

Multiply a column by a row

Created by Amitava Biswas

Tags

matrix; multiply

Problem Group

Community
87Solvers

Find the largest value in the 3D matrix

Created by Bruce Raine

Tags

3d

Problem Group

Community
86Solvers

Rotate a Matrix

Created by Yudong Zhang

Tags

rotation, function

Problem Group

Community
82Solvers

Check if number exists in vector

Created by Nichlas

Tags

vectors

Problem Group

Community
79Solvers

Number of Horns on a unicorn!

Created by Patrick Schuster

Tags

unicorn, fun

Problem Group

Community
78Solvers

Flip the main diagonal of a matrix

Created by Bruce Raine

Tags

diagonal, magic

Problem Group

Community
77Solvers

Remove the air bubbles

Created by Ned Gulley

Tags

matrix manipulation

Problem Group

Community
76Solvers

Getting the indices from a vector

Created by Doug Hull

Tags

indexing, ml101

Problem Group

Community
75Solvers

Distance walked 2D

Created by Amitava Biswas

Tags

walk

Problem Group

Community
74Solvers

Create a square matrix of multiples

Created by Bruce Raine

Tags

square matrix, muliples, easy

Problem Group

Community
74Solvers

Count photos

Created by Amitava Biswas

Tags

combinatorics

Problem Group

Community
71Solvers

Angle between two vectors

Created by Aurelien Queffurust

Tags

angle

Problem Group

Community
69Solvers

Make a random, non-repeating vector.

Created by Doug Hull

Tags

ml101

Problem Group

Community
67Solvers

Replace Vector Elements

Created by Reza Ahmadzadeh

Tags

replace

Problem Group

Community
64Solvers

Nearest

Created by @bmtran

Tags

near

Problem Group

Community
63Solvers

Vectorize the digits of an Integer

Created by Richard Zapor

Tags

integer vector trick

Problem Group

Community
63Solvers

Is A the inverse of B?

Created by Bruce Raine

Tags

identity, inverse, inverse function

Problem Group

Community
62Solvers

Generate a vector like 1,2,2,3,3,3,4,4,4,4

Created by Binbin Qi

Tags

ones, zeros, for

Problem Group

Community
61Solvers

add two numbers: 2+3 = 5

Created by Sourav Mondal

Tags

number, add, math

Problem Group

Community
61Solvers

Make a 1 hot vector

Created by @bmtran

Tags

plus15

Problem Group

Community
61Solvers

Multiply 2 numbers

Created by Aurelien Queffurust

Tags

product, multiplication

Problem Group

Community
58Solvers

Getting logical indexes

Created by Doug Hull

Tags

logical indexing, indexing, ml101

Problem Group

Community
58Solvers

Duplicate each element of a vector.

Created by Julio

Tags

vectors

Problem Group

Community
57Solvers

hanoi problem

Created by eric landiech

Tags

hanoi

Problem Group

Community
55Solvers

DC chopper

Created by Amitava Biswas

Tags

acdc

Problem Group

Community
55Solvers

Find max

Created by Marco

Tags

max, vector, find, matrix

Problem Group

Community
54Solvers

Getting the row and column location from a matrix

Created by Doug Hull

Tags

indexing, ml101

Problem Group

Community
53Solvers

canon ball

Created by Amitava Biswas

Tags

projectile

Problem Group

Community
53Solvers

Return unique values without sorting

Created by Aurelien Queffurust

Tags

sorted, unique

Problem Group

Community
51Solvers

sum of non-primes

Created by li jian

Tags

isprimes

Problem Group

Community
51Solvers

Reindex a vector

Created by James

Tags

indices, handling vectors

Problem Group

Community
51Solvers

surrounded matrix

Created by Grzegorz Knor

Tags

matrices

Problem Group

Community
51Solvers

Reverse the Words (not letters) of a String

Created by @bmtran

Tags

regexp

Problem Group

Community
51Solvers

Getting the absolute index from a matrix

Created by Doug Hull

Tags

indexing, ml101

Problem Group

Community