R=input('Please input R='); ` E`HVZ}
p=0.1; -,# +`>w
n=chaxun(R); [M+tB" _
L=15; `=)2<Ca;~@
c=3*10^8; ~}ovuf=%
h=6.626196*10^(-34); HZjf`eM,
k=1.3806505*10^(-23); [~mGsXV
B=198.95; fg*@< '
r=0.509*10^(-60); @F5f"8!.\
d=532*10^(-9); q9*MNHg }
for s=0:20 NC"yDWnO'
for T=0.1:50:300.1 6d|q+]x_n
if mod(s,2)==0 4{na+M
f=p*n*L*6*((2*h*c)/(9*k*T))*((3/2)*(s+1)*(s+2)/(2*s+3))*(64*(pi^2)/15)*((c/d-(4*s+6)*B)^4)*r*exp(-(h*c*B/(k*T))*s(s+1)); 1,t)3;o$
y=diff('f','T'); IApT'QNM
elseif mod(s,2)==1 Frm;Ej3?$
f=p*n*L*3*((2*h*c)/(9*k*T))*((3/2)*(s+1)*(s+2)/(2*s+3))*(64*(pi^2)/15)*((c/d-(4*s+6)*B)^4)*r*exp(-(h*c*B/(k*T))*s(s+1)); n! h7
y=diff('f','T'); /DFV$+ 9
end ig#r4nQ=
end l*
dV\ B
end p~jlx~1-]
plot3(y,s,T); 7[#xOZT
怎么错了，希望哪位大侠指点。 x?,9_va]
