MATLAB: How can i plot a circle intersect with a line

circle line

i want to write a program that can help to plot a circle intersect with a line

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MATLAB: Warning: Explicit solution could not be found.

If you add together your first two equations and simplify(), you will find that Xc, Yc, and Zc all drop out, leaving a constant. As the right side of the two is implicitly 0, and 0+0=0 but adding the two does not give 0, the equations are inconsistent, so there is no solution to the trio of equations.

MATLAB: How can i rotate an ellipse

Hello,

Use this:

 clc;
xc=50; %xCenter
yc=50; %yCenter
a=25; %xRad
b=100; %yRad
m = 1000;
x = zeros(m,1);
y = zeros(m,1);
theta = linspace(0,2*pi,m);
for k = 1:m
        x(k) = a * cos(theta(k));
        y(k) = b * sin(theta(k));
end
alpha = input('Enter the rotation angle');
R  = [cos(alpha) -sin(alpha); ...
      sin(alpha)  cos(alpha)];
rCoords = R*[x' ; y'];   
xr = rCoords(1,:)';      
yr = rCoords(2,:)';      
plot(x+xc,y+yc,'r');
grid on;
hold on;
axis equal;
plot(xr+xc,yr+yc,'b');

Red ellipse is the original one and Blue is the rotated one.

Source: Answer 208806

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Related Solutions

MATLAB: Warning: Explicit solution could not be found.

MATLAB: How can i rotate an ellipse

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