Problem 554. Is the Point in a Circle?

Created by Kuifeng

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Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r.

 Points = [x, y]; 
 circle = (x0, y0, r)

Return true or false for each point tested

Solve

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Last Solution submitted on Dec 15, 2025

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Stefan on 3 Apr 2012

error in the test:

assert(isequal(your_fcn_name(x),y_correct))
Error: Undefined function or variable 'x'.

Should be:

assert(isequal(your_fcn_name(Points,circle),y_correct))

Ned Gulley on 3 Apr 2012

I went ahead and fixed the calling syntax on that.

Kuifeng on 4 Apr 2012

Thanks for the corrections!

Abdelhak ARESMOUK on 5 Dec 2012

You should correct the first test!

Li Ding on 22 Oct 2017

The first test case is wrong.

Rafael Hernandez-Walls on 20 Nov 2017

The first test case is wrong, is FALSE

Jeremy Perez on 16 Sep 2020

Is the Point on a Disk?
Is the Point inside a Circle?

Ignacio Davila on 18 Oct 2022

The first test is still wrong! It has not been corrected.

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Problem 554. Is the Point in a Circle?

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Problem 554. Is the Point in a Circle?

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Last 200 Solutions

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Problem Recent Solvers625

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