Trial software

Problem 1024. Doubling elements in a vector

Created by Abdelhak ARESMOUK

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given the vector A, return B in which all numbers in A are doubling. So for:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>A = [ 1 5 8 ]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>then</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>B = [ 1 1 5 5 8 8 ]</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

12612 Solutions
6225 Solvers

Last Solution submitted on Apr 01, 2023

Last 200 Solutions

Problem Comments

6 Comments

6 Comments

Show 3 older comments

srisai vangara on 29 Apr 2020

Really found a lot of trouble to find the solution.
But could not find how someone could solve it just using a size of 7.

Sivaramarao B on 7 Jun 2020

good one

Kaiz Merchant on 4 Aug 2020

What matlab functions are useful for this ? (I did it with a loop)

Michael Green on 8 Feb 2021

Good problem if you don't use repelem

Javid Moraveji on 4 Jun 2022

I think the test should also check for column vectors and any vector with special variables Inf and NaN

Mostafa on 30 Dec 2022

Nice problem without using kron function

Solution Comments

Solution 10446820

1 Comment

1 Comment

Shadi on 16 Feb 2023

Too hard, pls put it in Fundamental course

Solution 10446625

Solution 8824485

1 Comment

1 Comment

thilanka udara on 29 Jul 2022

Good

Solution 8786440

1 Comment

1 Comment

琪 on 23 Jul 2022

nice job👍

Solution 8689425

1 Comment

1 Comment

Sujith on 12 Jul 2022

Heavy

Solution 8496170

Solution 8290100

1 Comment

1 Comment

Siddharth Pachpor on 8 May 2022

tricky

Solution 7215760

1 Comment

1 Comment

Cayden Jarvis on 13 Dec 2021

I liked this problem!

Solution 6877769

2 Comments

2 Comments

Josh Klueber on 12 Nov 2021

tricky

Isabella Stellitano on 15 Nov 2021

good problem

Solution 6425764

Solution 6000860

1 Comment

1 Comment

Kossel E. LEGUEZIM on 22 Jun 2021

Nice!

Solution 5674430

1 Comment

1 Comment

john perkins on 4 May 2021

good problem

Solution 4144605

1 Comment

1 Comment

John Hackenberg on 11 Dec 2020

fun one

Solution 2589328

Solution 2513921

1 Comment

1 Comment

Batuhan CELIK on 10 Jun 2020

@ivan lyss Could you help me How solved this problam

Solution 1936856

1 Comment

1 Comment

Uchechukwu Obimma on 9 May 2020

Please, I need your help to solve this problem, ChanXy.

Problem Recent Solvers6225

Suggested Problems

Extract leading non-zero digit

1755 Solvers
given 3 sides, find area of this triangle

775 Solvers
Bottles of beer

2066 Solvers
Perfect Square or not

358 Solvers
Plot Damped Sinusoid

6530 Solvers

More from this Author2

Divisors of an integer

181 Solvers
Solving a quadratic equation

92 Solvers

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Trial software