- #1

- 2

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I've looked in tables and tried Mathmatica but have not came

up with a formula for the integral over x of

sqrt(x^2-a^2)exp(-x)

If anyone could point me in the right direction I'd be appreciative.

Thanks

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- Thread starter uplink
- Start date

- #1

- 2

- 0

I've looked in tables and tried Mathmatica but have not came

up with a formula for the integral over x of

sqrt(x^2-a^2)exp(-x)

If anyone could point me in the right direction I'd be appreciative.

Thanks

- #2

- 47

- 0

Integration by parts?

There is a standard formula for integrating [tex]\int\sqrt{x^2-a^2}dx[/tex] (that involves logs which might help later with the exponential).

Haven't worked it out myself but that's where i'd start.

- #3

Cyosis

Homework Helper

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You won't be able to find a primitive.

- #4

- 47

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yeah. wolfram didn't like it when i plugged it in.

- #5

- 2

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of the form (x^2-a^2)^n/2 exp(-x). Maybe I'll just have to integrate numberially for fixed values of a.

- #6

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