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

2540 Solutions
538 Solvers

Last Solution submitted on Jul 28, 2021

Last 200 Solutions

Problem Comments

7 Comments

7 Comments

Show 4 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

Solution Comments

Solution 5678970

1 Comment

1 Comment

john perkins on 4 May 2021

this took a minute to think about!

Solution 4369605

1 Comment

1 Comment

arsenic 陈 on 13 May 2021

so smart

Solution 2942635

1 Comment

1 Comment

Jimmy Sølvsteen Nielsen on 13 Sep 2020

why are competing against phony "Leading solutions" like this:
function ans = your_fcn_name3(varargin)
! echo "function assert(~)" > ./assert.m
end
This is not a solution, just a clever hack to get around the assertions or what??!!

Solution 1829504

1 Comment

1 Comment

A C on 29 May 2019

Great!

Solution 182016

Problem Recent Solvers538

Problem Tags

circle

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 Solvers538

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 Solvers538

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players