R=input('Please input R=');
nF3}wCe) p=0.1;
m_NX[>&Y3 n=chaxun(R);
HR>Y?B{ L=15;
CK* *RZ c=3*10^8;
MlO OB h=6.626196*10^(-34);
bQ<qdGa k=1.3806505*10^(-23);
f}otIf
B=198.95;
y]9R#\P/ r=0.509*10^(-60);
)'shpRB;1 d=532*10^(-9);
=?sG~ for s=0:20
w,{h9f for T=0.1:50:300.1
X2w)J?pv if mod(s,2)==0
[-~pDkf: 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));
1v@#b@NXM7 y=diff('f','T');
xJq|,":gj elseif mod(s,2)==1
dwj?; 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));
*7mlH y=diff('f','T');
<T