Plotting an equation with Matlab
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Hi I will plot T(E)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/193904/image.gif)
where K2 is
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/193905/image.gif)
h=1.36e-34
clc
clear all
m=1.6e-18;
U=5e-19;
E=10e-19:0.1:20e-19;
a=1e-9;
h=1.36e-34;
k=sqrt(2*m.*(E-U));
k2=k/h; c=(U^2)*(sin(0.5*a*k2).^2)./(4*E.*(E-U))
T=1./(1+c);
plot(E,T)
But I see an empty plot!
Can someone help me please ?
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Answers (1)
TADA
on 5 Nov 2018
Edited: TADA
on 5 Nov 2018
Your problem is the initialization of E you did:
E=10e-19:0.1:20e-19;
your interval is 17 orders of magnitude higher than the values, so you get a scalar instead of a vector
you should use an interval of the same order of magnitude or less
E=10e-19:0.1e-19:20e-19;
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