R=input('Please input R='); eW<|I
p=0.1; b#%$y
n=chaxun(R); uqotVil,
L=15; &u`]Zn
c=3*10^8; ?2(52?cJ
h=6.626196*10^(-34); 4 EE7gkM5
k=1.3806505*10^(-23); ~:krJ[=
B=198.95; u+7S/9q8
r=0.509*10^(-60); n[KL Y!
d=532*10^(-9); d6+$[4w
for s=0:20 n 9>**&5L
for T=0.1:50:300.1 W(jOD,QMB
if mod(s,2)==0 fzdWM:g
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)); ""f'L,`{.
y=diff('f','T'); yR3pK
0Y(?
elseif mod(s,2)==1 MD):g@
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)); !qu/m B
y=diff('f','T'); [%c5MQ?H
end Te6cw+6
end <rihi:4K
end \Ota~A
plot3(y,s,T); PyoIhe&ep
怎么错了,希望哪位大侠指点。 d=nv61]