R=input('Please input R='); ?E1<>4S8
p=0.1; >hqev-
n=chaxun(R); .?7u'%6x?{
L=15; \l^L?69
c=3*10^8; nn>1OO
h=6.626196*10^(-34); yOKpi&! r
k=1.3806505*10^(-23); `"CIy_m
B=198.95; O~t]:p9_
r=0.509*10^(-60); 6&~8TH
d=532*10^(-9); W}&[p=PAS
for s=0:20 Yud]s~N
for T=0.1:50:300.1 JCoDe.
if mod(s,2)==0 *_G(*yAe(
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)); ]IbX<
y=diff('f','T'); Oax*3TD
elseif mod(s,2)==1 [J0f:&7\
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)); @c&}\#;
y=diff('f','T'); f,Q oA
end Vfkm{*t)
end 9>gxJ7pY
end D^cv
8 8<
plot3(y,s,T); NQQ+l0txI
怎么错了,希望哪位大侠指点。 ~{Gbu oH