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Check Whether a Point Lies Inside,Outside or On a Circle

version 1.2.0.0 (1.37 KB) by Divakar Roy
Checks whether a point lies inside,outside or on a circle defined by 3 other points.

4.1K Downloads

Updated 24 Jun 2011

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This program checks whether a point (x,y) lies inside,outside or on a circle defined by 3 other points.

Syntax: iscircle(X,Y,x,y), where X=[x1 x2 x3] and Y=[y1 y2 y3]. Thus, a circle can be made out of these 3 points-->(x1,y1), x2,y2)&(x3,y3).
Program checks whether point (x,y) lies inside,outside or on the circle.
ans=0 ==> lie on the circle.
ans=1 ==> lie outside the circle.
ans=-1 ==> lie inside the circle.

Cite As

Divakar Roy (2021). Check Whether a Point Lies Inside,Outside or On a Circle (https://www.mathworks.com/matlabcentral/fileexchange/8284-check-whether-a-point-lies-inside-outside-or-on-a-circle), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2010b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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