R=input('Please input R='); 4ye`;hXy
p=0.1; 5& rCNi*\
n=chaxun(R); /4"S}P>f
L=15; S\v&{
c=3*10^8; 9A}
kkMB:
h=6.626196*10^(-34); B
GEJiLH
k=1.3806505*10^(-23); Pv2nV!X6
B=198.95; { Jw<<<G
r=0.509*10^(-60); g]iy -,e
d=532*10^(-9); soqNzdTB2
for s=0:20 2;?wN`}5g=
for T=0.1:50:300.1 QnP?;
if mod(s,2)==0 0m+5Zn
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)); >e$^# \D
y=diff('f','T'); yz2oS|0 '
elseif mod(s,2)==1 eZ.0,A*1B1
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)); 8F\Msx
y=diff('f','T'); S~a:1
_Wl
end xwH|ryfs,Z
end 4|Gs(^nU
end !DX/^b
plot3(y,s,T); +} ! F(c
怎么错了，希望哪位大侠指点。 w`#0
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