making a parameter in an integrand real
- To: mathgroup at smc.vnet.net
- Subject: [mg116742] making a parameter in an integrand real
- From: alan <alansbarnett at verizon.net>
- Date: Fri, 25 Feb 2011 06:38:20 -0500 (EST)
How do I get mathematica to consider a parameter in an integrand to be real. Example: In[1]:Integrate[1/(Cos[x] Sqrt[Cos[x]2 - a2]), x] ArcTanh[(Sqrt[2] Sqrt[-a2] Sin[x])/Sqrt[1 - 2 a2 + Cos[2 x]]]/Sqrt[- a2] But I want a2>0 (a real).