R=input('Please input R='); +p\+15
p=0.1; p4sU:
n=chaxun(R); @@QB,VS;{<
L=15; upc-Qvk
c=3*10^8; Vgg'5o&.
h=6.626196*10^(-34); W02t6 DW
k=1.3806505*10^(-23); -h`[w:
B=198.95; i9O;D*
r=0.509*10^(-60); KrzIL[;2o
d=532*10^(-9); D3.$Vl,.
for s=0:20 '#ow9w+^
for T=0.1:50:300.1 ysDGF@wZC
if mod(s,2)==0 pLtAusx
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)); )"sJaHx<
y=diff('f','T'); Y2&hf6BE
elseif mod(s,2)==1 /@xL {
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)); -S6^D/(;
y=diff('f','T'); 37U$9]
end "(NJ{J#A
end k>W}9^ cK
end ll#_v^
plot3(y,s,T); %&\DCAFk
怎么错了,希望哪位大侠指点。 N&YQZ^o