RECITATION 1 - week of 2014 August 24

QUESTION 1 - handled in a separate email, but I have attached a plot to the email. although, the plots aren't
	very good are they? I bet if you played with the spectogram function you could make them look way better.

QUESTION 2 - symbolic toolbox and integration

	a) should look something like this for the setup

syms t
function_1 = sin(2*pi*100*t)
time = [0:0.001:0.02];
% now to make this look 'pretty' you'd probably want to use 0.0001 but that will make a computer chug a bit
% i'm not smart enough to figure out how not to use a loop here, are you?
for i=1:length(time)
	intFunction_1(i) = int( function_1,0,time(i) );
end
% now intFunction_1 has all the values! just plot it!

	b) should be quite similar in approach

QUESTION 3 - verify with matlab

% you can have lots of symbolics in your function, as long as you tell the function
% which one you wish to integrate with (it defaults to x if nothing is specified)
syms f_1 f_2 t
signal = sin(2*pi*f_1)+sin(2*pi*f_2);
power = int(signal^2,t,0,1);