Re: Trivial integral freezes 3.0
- To: mathgroup at smc.vnet.net
- Subject: [mg9808] Re: Trivial integral freezes 3.0
- From: Zen at archer.com (ZenArcher)
- Date: Fri, 28 Nov 1997 05:35:20 -0500
- Organization: AT&T WorldNet Services
- Sender: owner-wri-mathgroup at wolfram.com
On 24 Nov 1997 23:55:14 -0500, carlos at titan.Colorado.EDU (Carlos A.
Felippa) wrote:
>The following trivial Integrate statement (from a class example) appears
>to freeze Mathematica 3.0 running under Mac OS 7.5.5.
>
>ClearAll[alpha,phi]; alpha=Pi/3;
>q=(Cos[alpha]-Cos[alpha+phi])/(-alpha+Pi+Cos[alpha]*Sin[alpha]);
>Print["q=",q//InputForm];
>r1=Integrate[q,{phi,0,2*Pi-2*alpha}]; Print["r1=",r1//InputForm];
>
>Same freeze happens for other values of alpha, e.g alpha=Pi/6.
>Mathematica 2.2 has no problems.
>
>I am curious as to whether the freeze happens on non-Mac versions.
>
>
"q="\[InvisibleSpace](1/2 - Cos[phi + Pi/3])/(Sqrt[3]/4 + (2*Pi)/3)
Works fine on my NT4.0 WS