Dears,

I can not find thid integral, anyone can help me?

RegardsAttachment 24711

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- Sep 6th 2012, 03:23 AMraedFinding integral
Dears,

I can not find thid integral, anyone can help me?

RegardsAttachment 24711 - Sep 6th 2012, 03:40 AMtopsquarkRe: Finding integral
$\displaystyle \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds$

Note that t and p are constants in the integral. So....

$\displaystyle \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds = p\int_a^t \frac{e^{-s}}{(1 + pt) - (ps )}ds$

To make this a bit more transparent, let 1 + pt = y, where y is of course a constant.

$\displaystyle \int_a^t \frac{pe^{-s}}{1 - p(s - t)}ds = p\int_a^t \frac{e^{-s}}{y - ps }ds$

What can you do with this?

-Dan