Re: Problem with Integration
- To: mathgroup at smc.vnet.net
- Subject: [mg22556] Re: Problem with Integration
- From: hans.steffani at e-technik.tu-chemnitz.de (Hans Friedrich Steffani)
- Date: Sat, 11 Mar 2000 17:52:33 -0500 (EST)
- Organization: Chemnitz University of Technology
- References: <8a53ai$dln@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
On 8 Mar 2000 03:34:26 -0500,
Hans Friedrich Steffani <hans.steffani at e-technik.tu-chemnitz.de> wrote:
>In[1]:= U[f_]:=1.0*Integrate[Cos[(f*Pi)/(180*2) + alpha],{alpha,-(Pi/3), Pi/3}]
>
>In[2]:= U[60]
>
> -16
>Out[2]= 1.5 - 6.08617 10 I
The 1.0 was only a placeholder for some magic numeric value. I am now
using
U[f_]:=1.0*Simplify[Integrate[Cos[(f*Pi)/(180*2) + alpha],
{alpha,-(Pi/3), Pi/3}]]
which leads to real results for real f.
Thanks for any help.
Hans Friedrich Steffani