math 294 hwk 3

# math 294 hwk 3 - title'sheared axis'equal axis-4 4-4...

This preview shows pages 1–2. Sign up to view the full content.

%Jim Liu Math 2940, section 1 body = [-1 -.5 0 1 1.5 2 2 -1 -1; % Drawing of body of a car. 1 1 1.5 1.5 1 1 .5 .5 1]; x=body(1,:); y=body(2,:); subplot(2,3,1) plot (x,y,'g') title('Original Car Body by Jim Liu') axis('equal'); axis([-4 4 -4 4]); grid on %rotation theta = .3*pi/4; A = [ cos(theta) -sin(theta); sin(theta) cos(theta) ]; bodynew=A*body; subplot(2,3,2) plot(newbody(1,:), newbody(2,:)); title('Rotation') axis('equal'); axis([-4 4 -4 4]); %shear subplot(2,3,3) shear=[1 .5 ; 0 1]; newbody=shear*body; plot(newbody(1,:), newbody(2,:));

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: title('sheared') axis('equal'); axis([-4 4 -4 4]); %rotate then shear subplot(2,3,4) newbody=shear*A*body; plot(newbody(1,:), newbody(2,:)); title('rotate then shear') axis('equal'); axis([-4 4 -4 4]); %shear then rotate subplot(2,3,5) newbody=A*shear*body; plot(newbody(1,:), newbody(2,:)); title('shear then rotate') axis('equal'); axis([-4 4 -4 4]); The rotate then shear is different from shear then rotate because matrix multiplication is not commutative....
View Full Document

## This note was uploaded on 04/28/2009 for the course 1920 1920 taught by Professor Connelly during the Fall '10 term at Cornell.

### Page1 / 2

math 294 hwk 3 - title'sheared axis'equal axis-4 4-4...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online