Re: Definite integral
- To: mathgroup at smc.vnet.net
- Subject: [mg88475] Re: [mg88434] Definite integral
- From: Curtis Osterhoudt <cfo at lanl.gov>
- Date: Tue, 6 May 2008 06:41:16 -0400 (EDT)
- Organization: LANL
- References: <200805051014.GAA08412@smc.vnet.net>
- Reply-to: cfo at lanl.gov
Hi, Miguel, I'm not sure why Mathematica wouldn't do it, but the result of that unevaluated integral is (using 6.0.1.0 on Linux x86 -- 32-bit) Integrate[(3/2)*Sqrt[Sin[2*\[Theta]]^2], {\[Theta], 3*(Pi/2), t}, Assumptions -> Element[t, Reals] && 3*(Pi/2) < \[Theta] < 2*Pi] -(3/(2*Sign[3*Pi - 2*t])) - (3/2)*Abs[Cos[t]]*Sin[t]*Tan[t] Hope that helps! C.O. On Monday 05 May 2008 04:14:05 Miguel wrote: > I don't understand Mathematica can't calculate the last definite > integral. For the first three integrals works fine, but for the last > one crush. You can see in this paper > > http://mathematicaes.googlegroups.com/web/Curves.pdf?gda=7zTXujoAAAA-whg7fo >WysEERSilJsIeVif4THE-OC9pisLLDECe8l5BwmXXnNsFOempl8HAl8JkHsusoMR-tRlq_vv1lRg >eh&gsc=CGn5gQsAAABmIpg7U95zHJwjbRxzLtsD > > Thanks -- ========================================================== Curtis Osterhoudt cfo at remove_this.lanl.and_this.gov PGP Key ID: 0x4DCA2A10 Please avoid sending me Word or PowerPoint attachments See http://www.gnu.org/philosophy/no-word-attachments.html ==========================================================
- References:
- Definite integral
- From: Miguel <misvrne@gmail.com>
- Definite integral