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Integration qpint [message #81061]

Sun, 12 August 2012 10:42

Gompie
Messages: 76
Registered: August 2012

Member

Hi
Can anyone help. I am using qpint1d to integrate but i get
"Program caused arithmetic error: Floating overflow:"

The code is
C1 = 1.1910427E-12
c2=1.43883
T=300
c=c1*(c2^(-4))*T^4
llimit=c2*2380/T
ulimit=c2*2940/T
print,"X=",llimit,ulimit
lin= c*qpint1d('x^3/(EXP(X)-1)', llimit, +inf, /expr)
rin=c*qpint1d('x^3/(EXP(X)-1)', ulimit, +inf, /expr)
print,abs(lin-rin)
end

This outputs a number ( i am not sure if it is correct) but it also says floating point error.
Thanks in advance
Gompie

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