# Math Help - Integral calculation

1. ## Integral calculation

Hi! I have a problem solving this integral.Could someone help me or give me an advice?

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$\int_{0}^{2\pi} cos(\theta)exp(a \cos(\theta))d\theta
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2. Originally Posted by hokutose
Hi! I have a problem solving this integral.Could someone help me or give me an advice?

$
$
$\int_{0}^{2\pi} cos(\theta)exp(a \cos(\theta))d\theta
$

Are you sure you copied down the integral correctly?

Mathematica is telling me this can't be solved exactly...

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