write a program that performs the transformation of points induced by a matrix in matlab

To perform the transformation of points induced by a matrix in Matlab, you can follow these steps:

  1. Define the input point as a column vector.

  2. Define the transformation matrix.

  3. Multiply the transformation matrix by the point vector.

  4. Extract the transformed point vector from the result of the multiplication.

Here's an example Matlab code that performs a translation followed by a rotation transformation:

main.m
% Define the input point as a column vector
point = [1; 2];

% Define the transformation matrix for translation
translation = [1 0 2; 0 1 3; 0 0 1];

% Define the transformation matrix for rotation
theta = pi/4; % 45 degree rotation
rotation = [cos(theta) -sin(theta) 0; sin(theta) cos(theta) 0; 0 0 1];

% Combine the transformation matrices
transformation = translation * rotation;

% Apply the transformation to the point
point_homogeneous = [point; 1];
transformed_homogeneous = transformation * point_homogeneous;
transformed = transformed_homogeneous(1:2);

% Print the results
disp("Input point:");
disp(point);
disp("Transformed point:");
disp(transformed);
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This code performs a translation of (2, 3) followed by a rotation of 45 degrees around the origin, and transforms the input point (1, 2) to the output point (3.1213, 3.5355).

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