R=input('Please input R='); n#'',4f
p=0.1; tf79Gb>
n=chaxun(R); nhhJUN?8
L=15; KgAX0dM
c=3*10^8; /;$ew~}
h=6.626196*10^(-34); s1apHwJ -
k=1.3806505*10^(-23); uM<+2S
B=198.95; o%4+I>
r=0.509*10^(-60); +!Ag n)
d=532*10^(-9); R~(.uV`#j
for s=0:20 HON[{Oq
for T=0.1:50:300.1 SLB iQd.
if mod(s,2)==0 Vta;ibdeqW
f=p*n*L*6*((2*h*c)/(9*k*T))*((3/2)*(s+1)*(s+2)/(2*s+3))*(64*(pi^2)/15)*((c/d-(4*s+6)*B)^4)*r*exp(-(h*c*B/(k*T))*s(s+1)); o=2`N2AL
y=diff('f','T'); kYa'
] m
elseif mod(s,2)==1 UVU*5U~
f=p*n*L*3*((2*h*c)/(9*k*T))*((3/2)*(s+1)*(s+2)/(2*s+3))*(64*(pi^2)/15)*((c/d-(4*s+6)*B)^4)*r*exp(-(h*c*B/(k*T))*s(s+1)); g*AqFY7|
y=diff('f','T'); LtIZgOd<
end Mxp4 YQl
end Bq8<FZr#!
end iW$i%`>
plot3(y,s,T); ^Wz{su2
怎么错了,希望哪位大侠指点。 ZSb+92g{L$