Re: definite double integral issue

*To*: mathgroup at smc.vnet.net*Subject*: [mg129071] Re: definite double integral issue*From*: Themis Matsoukas <tmatsoukas at me.com>*Date*: Tue, 11 Dec 2012 19:55:37 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net

The first time I tried your command, the kernel quit, i.e., the evaluation stopped without any output. This happened a couple times. But after I did some other integrals and came back to your evaluation, Mathematica gave me the result you see below. Now I cannot reproduce the kernel crash any more. Integrate[x/Sqrt[x^2 + y^2], {y, -1/2, 3/2}, {x, -1, 1/2 - y}] 1/32 (2 Sqrt[5] - 2 Sqrt[13] - 16 ArcSinh[1/2] - 16 ArcSinh[3/2] + Sqrt[2] ArcSinh[3] + Sqrt[2] ArcSinh[5]) (8.0.1 on Mac)