From: Vladimir Bondarenko on 27 Oct 2009 00:39 In[1] := $Version Out[1] = 7.0 for Microsoft Windows (32-bit) (February 18, 2009) In[2] := Integrate[Cos[Pi z] Cos[z]^Pi, {z, 0, Pi/2}] Out[2] = 0 In[3] := NIntegrate[Cos[Pi z] Cos[z]^Pi, {z, 0, Pi/2}] Out[3] = 0.177994
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