%
% TEST 1 - SECTION 2
% Sample Solutions
%

clear all;
% QUESTION #1:
% 	Generate a clock signal [1 0 1 0 ... ] of length 1000.
clock = reshape([ones(1,500); zeros(1,500)], 1, 1000);

% QUESTION #2:
%	Find angle (in dgrees) where two curves meet.
x = 0 : 0.1 : 2*pi;
y1 = sin(x);
y2 = cos(x);
pos = x(find( abs(y1-y2) == min(abs(y1-y2)) )) * 180 / pi;

% QUESTION #3: Open a figure window and...
%	a) Make the background blue
set(gcf, 'Color', 'Blue');
%	b) Print your name (and nothing else) in the figure title
set(gcf, 'Name', 'Matt Lab');
set(gcf, 'NumberTitle', 'off');

%	c) Make the axes background white
axes; 
set(gca, 'Color', 'White');
%	d) Make the axis color red
set(gca, 'Xcolor', 'Red', 'YColor', 'Red');
pause;

% QUESTION #4: z = sin(sqrt(x^2 + y^2))
%	a) Plot z over the range -pi to pi in increments of 0.2
x = -pi : 0.2 : pi;
y = x;
[ X, Y ] = meshgrid(x, y);
z = sin(sqrt(X.^2 + Y.^2));
mesh(z);
pause;

%	b) Colormap such that high vales are hot and low values are gray
colormap([hot; gray]);