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<p>Dear Duners,<br>
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<p>I tried to work through the tutorial and understand the delivered code.<br>
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<p>Section "9.1 Introduction" in Chapter "9 Linear Solvers" claims that in "<span style="font-family: 'Courier New', monospace;">class CosinusProduct" of "poisson.hh" <span style="font-family: Calibri, Arial, Helvetica, sans-serif;">should be an implementation
of neuman boundary conditions and the comments in the code state the same. </span></span><br>
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<p><span style="font-family: 'Courier New', monospace;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif;">For the Dirichlet boundary conditions exists an explicit function where the Dirichlet boundary data could be set. For the Neuman boundary
condition there is no function.</span></span></p>
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<p><span style="font-family: 'Courier New', monospace;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif;">Could anyone please tell me, how the Neuman boundary condition data could be set?</span></span></p>
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<p><span style="font-family: 'Courier New', monospace;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif;">Sincerely</span></span></p>
<p>Justus Schock<br>
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