Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'exponential integral with an absolute value' topicStudent Support Forum > General > "exponential integral with an absolute value"

Next Comment >Help | Reply To Topic
Author Comment/Response
Snoozer
07/18/05 2:02pm

Basically I have a messy integral which I am trying to get a closed form for, but mathematica returns my input and nothing else. Here is my input (integrating over b1hat) (the mathematica notebook is attached):

Needs["Statistics`ContinuousDistributions`"]
f[b1hat_] = PDF[NormalDistribution[b0, Sqrt[v0 + 2*s2/n1]], b1hat]

Integrate[Abs[(2*b0*s2 + b1hat*n1*v0)/(2*s2 + n1*v0)]*f[b1hat], {b1hat, -(2*s2*(b1T + b0) + n1*b1T*v0)/(n1*v0), (2*s2*((b1T - b0)) + n1*b1T*v0)/(n1*v0)}, Assumptions -> {Element[{b0, v0, s2, a, b, n1, b1T},Reals] && (v0 > 0) && (s2 > 0) &&(n1 > 0) && (b1T > 0)}]

This seems to have something to do with b1T, if i allow b1T to vary on the real line it gives me something to integrate in the else clause, however, it doesnt seem to make sense. In the sense that is says all the assumptions should be the negations of the ones that I have made above.

Thanks for any help

Snoozer



Attachment: I3...short.nb, URL: ,

Subject (listing for 'exponential integral with an absolute value')
Author Date Posted
exponential integral with an absolute value Snoozer 07/18/05 2:02pm
Re: exponential integral with an absolute value Daniele Lupo 07/19/05 4:59pm
Re: exponential integral with an absolute value Henry Lamb 07/20/05 02:15am
Re: exponential integral with an absolute value Snoozer 07/24/05 6:47pm
Next Comment >Help | Reply To Topic