Looking for help. I'm trying to plot this

My goal is to create the plot from the picture below which Figure 2.3. Thank you so much in advance!

Variables

c = 2.99e8;	% speed of light [m/s]
h = 6.63e-34;	% Planck's constant [J s]
k = 1.38e-23;	% Boltzmann's constant [J/K]
A = 2.898e-3;	% Wein's Law constant [K m]
T = 300;      % Temperature [K]
lam = logspace(-8,1,100);	% wavelength [m]
%
% Planck's Law
%  My plot for Planck's law works!
L=((2*h*c^(2))./lam.^(5)).*(exp(h*c./(lam.*k*T)-1)).^(-1);
loglog(L)
%
% Wein's Law 
% How do I plot Wein's Law in Matlab correctly? My attempt below. 
Y=(h*c)./(k*T.*lam)

and when I use loglog(Y) nothing shows up! :(

The picture below is what I am referencing.

[Star Strider]

‘and when I use loglog(Y) nothing shows up!’

It does when I plot it:

figure
loglog(Y)

and also as:

figure
loglog(lam, Y)

[JC]

Using the code below gives me a line?

figure

loglog(lam, Y)

Is there a way where I can plot both functions separately on the same graph?

Answer 1

[JC]

Any ideas gentlemen?