R=input('Please input R='); .:;#[Z{-
p=0.1; vFGVz
n=chaxun(R); KkZ o|\V
L=15; %[m%QP1;p
c=3*10^8; `{\10j*B
h=6.626196*10^(-34); 1<f,>BQ+
k=1.3806505*10^(-23); Va\?"dH>M
B=198.95; YfH+kDT
r=0.509*10^(-60); I=V]_Ik4N
d=532*10^(-9); }/z\%Y
for s=0:20 |R>I#NO5
for T=0.1:50:300.1 J]Qbg7|
if mod(s,2)==0 Z9lfd6MU,
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)); K9UWyM<(2C
y=diff('f','T'); "cX*GTNi8
elseif mod(s,2)==1 o
n?8l?iQ
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)); 8KS9!*.iZ
y=diff('f','T'); s KOy6v
end ZSW`/}Dp;
end ON$-g_s>)
end 4";[Xr{pW
plot3(y,s,T); 2<+9lk
怎么错了,希望哪位大侠指点。 h+Tt+Q\