%
%   
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% Do some function evaluation tricks
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%   Jon Collis
%   24 January 2012
%

% Just make sure we don't have extra stuff confusing things
clear;


% Define some function
f=@(x) exp(x);

%Some x values
x = 1:0.1:10;

figure(4);
plot(x,f(x));
xlabel('x');
ylabel('exponential');
title('Plot of exp(x)');

% Define some other function
f2=@(x,t) cos(x-5*t);


%Some t values
t = 5:0.1:14;


figure(5);
plot3(x,t,f2(x,t));
xlabel('space')
ylabel('time')
zlabel('cos(c-5t)')
title('Plane wave propagating in one dimension')