MathGroup Archive 1997

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What is wrong?



In[1]:= Integrate[x*Sin[x]/(x^2+1),{x,0,Infinity}]

        Pi
Out[1]= ---
        2 E

In[2]:= f[x_] = Evaluate[ Integrate[x*Sin[x]/(x^2+1),x]] ;

In[3]:= ans = f[Infinity] - f[0]

        E Pi
Out[3]= ----
         2

In[4]:= $Version

Out[4]= DEC OSF/1 Alpha 2.2 (September 9, 1994)


sergio

E-mail: sergio at scisun.sci.ccny.cuny.edu



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