%% Annotated Matlab transcript -- 4/5
%% CS 323 - Doug DeCarlo

% Matlab spline example

% the data: samples of f(x) = 1/x
x = [ 1 2 3 4 ];
y = 1./x;
plot(x,y)

% domain for evaluating the spline
xx = 1:0.01:4;
plot(xx,1./xx)

% spline interpolant
yy = spline(x,y,xx);
plot(x,y,'ro',xx,yy)

% plot of spline and original function
plot(x,y,'ro',xx,yy,xx,1./xx)