R=input('Please input R='); @Reh?]# v
p=0.1; *(_ON$+3
n=chaxun(R); kG~ivB}x
L=15; Rwi5+;N
c=3*10^8; n^I|}u\
h=6.626196*10^(-34); ZFd{q)qe
k=1.3806505*10^(-23); *1;L,*J"|
B=198.95; $$)<(MP3
r=0.509*10^(-60); [jmAMF<F
d=532*10^(-9); [jG uO%
for s=0:20 P89Dg/P
for T=0.1:50:300.1 PT=2LZ
if mod(s,2)==0 Qcy+ {j]
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)); _^,[wD
y=diff('f','T'); _cnrGi}T
elseif mod(s,2)==1 kB!M[[t
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)); J>&dWKM3
y=diff('f','T'); &Funao>
end +&@l{x(,
end yp7,^l
end wMR[*I/
plot3(y,s,T); .Jnp{Tet
怎么错了,希望哪位大侠指点。 ]mDsUZf<