there is correct the expresion [tex]\int^{-\pi+\epsilon}_{\pi-\epsilon} d\theta[/tex]....where [tex]\theta[/tex] is a angular coordinate between [tex](-\pi,\pi)[/tex]....¿what means this?...(adsbygoogle = window.adsbygoogle || []).push({});

i believe that this mean that the angular coordinate theta runs from [tex]\pi-\epsilon[/tex] to

[tex]-\pi+\epsilon[/tex] in the sense anti clock (figure)

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# Riemman summs

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