i need code in matlab

(x-a)^2+(y-b)^2=r^2 ,,, the point (a,b) center of circle and (r) the radius ..

with point (-1,3.2) --- (-8,4)--- (-6.5,-9.3)

[John D'Errico]

Hint 1: Use a loop.

Hint 2: Learn to use vectors, and arrays, to store that list of center coordinates.

Hint 3: Since this is a pretty basic question, do the MATLAB Onramp tutorials. Learn MATLAB.

[yahai]

Sorry.... I want to solve the equation on MATLAB

find the values ​​of (x,y,r)

Answer 1

[Image Analyst]

You didn't say what you wanted to do. I'll assume you want to draw the circles on a graph. Here is the code:

x = [-1; -8; -6.5];
y = [3.2; 4; -9.3];
r = 5;
viscircles([x, y], r);
axis equal
grid on

Also see the FAQ:

https://matlab.fandom.com/wiki/FAQ#How_do_I_create_a_circle?

[yahai]

Sorry.... I want to solve the equation on MATLAB

find the values ​​of (x,y,r)

Answer 2

[Image Analyst]

See attached function.

x = [-1; -8; -6.5];
y = [3.2; 4; -9.3];
plot(x, y, 'b.', 'MarkerSize', 50);
% Find the center and radius of a circle going through those points.
[xCenter, yCenter, radius] = circlefit(x, y)

xCenter = -5.1877

yCenter = -2.4174

radius = 7.0066

% Display the circle
viscircles([xCenter, yCenter], radius, 'Color', 'r');
axis equal
hold on;
% Plot center with a crosshairs
plot(xCenter, yCenter, 'r+', 'LineWidth', 2, 'MarkerSize', 100);