11 Jun
2008
11 Jun
'08
2:27 a.m.
from http://www.cs.cmu.edu/~adamchik/articles/catalan/catalan.htm In[1]:=Integrate[ArcSin[Sinh[t]], {t, 0, ArcSinh[1]}] Out[1]=-Catalan + (1/4)*Pi*Log[3 + 2*Sqrt[2]] (Not the trivial changevar of the ArcSinh[Sin[]].)