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 Author Comment/Response djeong 01/10/06 11:47pm Hi, I am using mathematica 5.2 student edition on the linux machine. I entered In[1]:= Om=0.27 In[2]:= Ov=1-Om In[3]:= f[a_]:=Integrate[(Om/x+Ov*x^2)^(-3/2),{x,0,a}] In[4]:= f[1] When I did it in my mathematica, it gave me Out[4]=0.943314+6.59085 10^-16 I However, if I put the exactly same thing in my friend's mathematica (v.5.0 on window), I got Out[4]=1.12594 Also, when I use "NIntegrate" instead of "Integrate", it gives 1.12594. How can I cure this problem? Should I use only "NIntegrate" instead of "Integrate" for the definite integral in the future? Or is it just a bug for this particular integral? Thank you in advance, DJ P.S. Actually, v.5.0 can find the solution like this : In[1]:=Integrate[(Om/x + Ov x^2)^(-3/2), {x, 0, a}, Assumptions -> {0 < a < 1}] Out[1]=2.851112440442597*a^(5/2)*Hypergeometric2F1[5/6, 3/2, 11/6, -2.7037037037037033*a^3] URL: ,

 Subject (listing for 'Integration error. Is 5.2 different from 5.0?') Author Date Posted Integration error. Is 5.2 different from 5.0? djeong 01/10/06 11:47pm Re: Integration error. Is 5.2 different from 5.0? Peter 02/01/06 01:51am
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