Please help with following code i am new with matlab and don't understand the error

clear

Eg = input('Enter your value for Eg(T) = ');

x = input('Enter your lower range for T = ');

y = input('Enter your higher range for T = ');

kb = 1.38*10^-23;

h = 6.63*10^-34;

T = x:10:y;

me = 6.19*10^-32;

mh = 5.10*10^-31;

k = (2*(((2*pi*kb*T)/(h^2))^1.5)*((me*mh)^3/4))

ni = k*exp((-Eg/2*kb*T))

plot(ni,T);

xlabel('Ni');

ylabel('Temperature');

display(ni);

[raviraja]

First tell about the program , like.. for which you have written the code

then select proper tags... then someone can be able to help.. :)

Answer 1

[Torsten]

Try

k = 2*(2*pi*kb*T/h^2).^1.5*(me*mh)^3/4

instead of

k = (2*(((2*pi*kb*T)/(h^2))^1.5)*((me*mh)^3/4))

Best wishes

Torsten.

Answer 2

[MA]

clear all
clc;
Eg = input('Enter your value for Eg(T) = ');
x = input('Enter your lower range for T = ');
y = input('Enter your higher range for T = ');
kb = 1.38*10^-23;
h = 6.63*10^-34;
T = x:10:y;
me = 6.19*10^-32;
mh = 5.10*10^-31;
k=zeros(1,length(T));
ni=zeros(1,length(T));
for i=1:length(T)
    k(i)=2*(((2*pi*kb*T(i))/(h^2))^1.5)*(((me*mh)^3)/4);
    ni(i)=k(i)*exp(-Eg/(2*kb*T(i)));
end
plot(ni,T)
xlabel('Ni')
ylabel('Temperature')