R=input('Please input R='); sLHUQ(S!
p=0.1; mQ$a^28=qR
n=chaxun(R); $4Vp l
L=15; A vh"(j
c=3*10^8; [\_#n5
h=6.626196*10^(-34); JXhHitUD
k=1.3806505*10^(-23); 'gD,HX
B=198.95; 31cC*
r=0.509*10^(-60); jIvSjlm I
d=532*10^(-9); *X%dg$VcV
for s=0:20 eV"Za.a.
for T=0.1:50:300.1 =!R+0
if mod(s,2)==0 Sd9%tO9mf
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)); 6he (v
y=diff('f','T'); VX'cFqrK3
elseif mod(s,2)==1 I
k[{,p
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)); .a@>1XO
y=diff('f','T'); qX_(
M2oLU
end RZL:k;}5
end Q>QES-.l
end ;,&$ob*/
plot3(y,s,T); 'P`L?/_3
怎么错了,希望哪位大侠指点。 v:xfGA nP