## Objectives

• To learn how MATLAB handles the image files.
• To learn how to create an animation.

## Questions

You just need to submit the final figure for each question.

1. Create a plot of the function: $y = \sin (x)$  for x from $- 2\pi$ to $+ 2\pi$
Assign the plot an object name (handle), and use the handle with appropriate dot nomenclature to change the following properties (if you aren't sure what the object name is for a given property, use the get function to see a list of available property names):
1. Line color from blue to green
2. Line style to dashed
3. Line width to 2
2. Assign a handle to the figure created in Question 1, and use the dot nomenclature to change the following properties (if you aren't sure what the object name is for a given property, use the get function to see a list of available property names):
1. Figure background color to red
2. Figure name to "A Sine Function"
3. Assign a handle to the axes created in Question 1, and use dot nomenclature to change the following properties (if you aren't sure what the object name is for a given property, use the get function to see a list of available property names):
1. Background color to blue
2. x-axis scale to log
4. Create an animation of the following pesudo code:
Let x vary from $-2\pi$ to $+2\pi$
Let $y = sin(x)$
Mesh x and y: [x,y] = meshgrid(x,y);
Let a be the animation variable from 0 to $8\pi$ with increment $\pi / 10$.
Using a for-loop from 1 to the length of the a
Let $z = sin(x-a) cos(y-a)$
Draw the z value using surf(z) function
Using drawnow function to update the graphic.
(Optional) You can add a delay function: pause(0.1)