A problem about ConstrainedMax
- To: mathgroup at smc.vnet.net
- Subject: [mg28529] A problem about ConstrainedMax
- From: xpzhu at red.semi.ac.cn
- Date: Wed, 25 Apr 2001 01:30:32 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
hi,
If we use ConstrainedMax[f[x],{x1<x<x2},x] to obtain the maximum of
f[x] in region {x1,x2}, it seems that f[x] should not include imaginary
part. e.g.,
In[1]:=ConstrainedMax[Abs[x+I],{1<x<2},x]
ConstrainedMax::cmfc: Constant term Abs[I+x] in Abs[I+x] is not a
real number
Out[1]=ConstrainedMax[Abs[x+I],{1<x<2},x]
Which function can give me the maximum of the absolute value of a
complex fuction f[x] in {x1,x2}?
thanks a lot
Zhu X. P.