Problem 558. Is the Point in a Triangle?

Created by Kuifeng

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","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\"?>\n<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>Check whether a point or multiple points is/are in a triangle with three corners</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Points = [x, y]; \n Triangle = [x1, y1; x2, y2; x3, y3]]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Return true or false for each point tested.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ For example,\n input: Points = [0, 0.5]; Triangle = [0, 0; 1, 0; 1, 1]\n output: y = 0;]]></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

4839 Solutions
1216 Solvers

Last Solution submitted on May 26, 2023

Last 200 Solutions

Problem Comments

10 Comments

10 Comments

Show 7 older comments

Asif Newaz on 19 Oct 2019

it was hard..nic problem

Umur Ulas Harman on 12 Jul 2020

The test has rounding problems.

ivan fernandez on 3 Oct 2020

That was hard to me but not impossible. Great!

KATTA PRATYUSHA on 18 Oct 2020

nice one
but it took so much of time

Roche de Guzman on 3 Dec 2020

Good problem!

Iris Huang on 8 Dec 2020

it's soooooo hard

arsenic 陈 on 13 May 2021

tip 组成内部角和为 360 度

Ben Westcott on 10 Nov 2021

Interesting problem! Especially hard when everything has to be in one function

Nguyen Trong Hiep on 1 Apr 2022

Still can't imagine how to solve this one

Hamza Harbi on 5 Feb 2023

This was an interesting one

Solution Comments

Show comments

Problem Recent Solvers1216

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 558. Is the Point in a Triangle?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1216

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Problem 558. Is the Point in a Triangle?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers1216

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players