Hi bitrex,
Have you found the answer to your question ? I am quite interested in too.
Maxima give me the following result and I don't manage Maxima to evaluate where as my TI-89 succeed !
\[\int_{0}^{0.25}\int_{-\frac{\pi }{32}}^{\frac{\pi }{32}}\frac{\mathrm{cos}\left( \phi-\frac{\pi...