Problem Groups

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

New to Cody? Let us show you how Cody works, or start solving problems.

Community

Problems submitted by members of the MATLAB Central community.

157Solvers

Solve the Sudoku Row

Created by @bmtran

Tags

sudoku, solve, logic

Problem Group

Community
146Solvers

First N Perfect Squares

Created by @bmtran

Tags

perfect squares, natural numbers, increment, integers, math

Problem Group

Community
146Solvers

remove DC

Created by Amitava Biswas

Tags

acdc

Problem Group

Community
145Solvers

Increment a number, given its digits

Created by the cyclist

Tags

digit increment

Problem Group

Community
142Solvers

Back to basics 22 - Rotate a matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
131Solvers

All your base are belong to us

Created by the cyclist

Tags

logarithm base

Problem Group

Community
127Solvers

Number of 1s in the Binary Representation of a Number

Created by @bmtran

Tags

base, count, binary

Problem Group

Community
120Solvers

Back to basics 10 - Max Float

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
120Solvers

Project Euler: Problem 10, Sum of Primes

Created by Doug Hull

Tags

projecteuler

Problem Group

Community
119Solvers

Back to basics 12 - Input Arguments

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
117Solvers

So many choices

Created by the cyclist

Tags

choose

Problem Group

Community
116Solvers

Back to basics 1 - Saving

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
110Solvers

give nth decimal place of pi

Created by Amitava Biswas

Tags

pi

Problem Group

Community
110Solvers

Count from 0 to N^M in base N.

Created by Chris

Tags

odd bases, counting

Problem Group

Community
108Solvers

Back to basics 14 - Keywords

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
107Solvers

Back to basics 9 - Indexed References

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
106Solvers

Convert a vector into a number

Created by Doug Hull

Tags

ml101

Problem Group

Community
105Solvers

Back to basics 23 - Triangular matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
103Solvers

Back to basics 21 - Matrix replicating

Created by Alan Chalker

Tags

matrices

Problem Group

Community
100Solvers

Back to basics 7 - Equal NaNs

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
100Solvers

pressure to dB?

Created by Amitava Biswas

Tags

decibel

Problem Group

Community
99Solvers

Number of 1s in a binary string

Created by Srivardhini

Tags

sum, binary

Problem Group

Community
95Solvers

2 b | ~ 2 b

Created by Alan Chalker

Tags

strings

Problem Group

Community
91Solvers

Back to basics 20 - singleton dimensions

Created by Alan Chalker

Tags

dimensions

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

Distance walked 3D

Created by Amitava Biswas

Tags

walk

Problem Group

Community
86Solvers

Rotate a Matrix

Created by Yudong Zhang

Tags

rotation, function

Problem Group

Community
86Solvers

Project Euler: Problem 7, Nth prime

Created by Doug Hull

Tags

primes, projecteuler

Problem Group

Community
86Solvers

Lose control

Created by Amitava Biswas

Tags

string

Problem Group

Community
85Solvers

Back to basics 17 - white space

Created by Alan Chalker

Tags

white spaces

Problem Group

Community
85Solvers

sorting

Created by Yvan Lengwiler

Tags

sorting

Problem Group

Community
82Solvers

Check if number exists in vector

Created by Nichlas

Tags

vectors

Problem Group

Community
81Solvers

Check to see if a Sudoku Puzzle is Solved

Created by @bmtran

Tags

sudoku, solve, logic

Problem Group

Community
79Solvers

Number of Horns on a unicorn!

Created by Patrick Schuster

Tags

unicorn, fun

Problem Group

Community
78Solvers

which quadrant?

Created by Amitava Biswas

Tags

geometry

Problem Group

Community
78Solvers

Flip the main diagonal of a matrix

Created by Bruce Raine

Tags

diagonal, magic

Problem Group

Community
78Solvers

Back to basics 15 - Benchmark

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
78Solvers

Read a Soroban Abacus

Created by @bmtran

Tags

abacus, soroban, japanese, logic, linear algebra

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
76Solvers

Back to basics 15 - classes

Created by Alan Chalker

Tags

classes

Problem Group

Community
75Solvers

Distance walked 2D

Created by Amitava Biswas

Tags

walk

Problem Group

Community
75Solvers

Back to basics 26 - Keywords

Created by Alan Chalker

Tags

keywords

Problem Group

Community