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From: shama shahbaz on 25 Feb 2010 07:44
hi i have an objective function with constraints as below
(c0^2+c1^2+c2^2)(0.0765)+0.0916(c0*c1)-0.0916(c1*c2)-0.021(c0*c2)
subject to
(c0^2+c1^2+c2^c3)=1
i don't how to solve it using minimize because it contain '=' constraint.
can anybody tell me how to solve it
Thankyou


From: dh on 25 Feb 2010 17:36
Hi,
the variable c3 in the constrain does not appear in your function. maybe
the constrain should read: (c0^2+c1^2+c2^2)=1. The your problem would be
written:

Minimize[{(c0^2+c1^2+c2^2)(0.0765)+0.0916(c0*c1)-0.0916(c1*c2)-0.021(c0*c2),
(c0^2+c1^2+c2^2)==1
},{c0,c1,c2}
]

Daniel

On 25.02.2010 13:44, shama shahbaz wrote:
> hi i have an objective function with constraints as below
> (c0^2+c1^2+c2^2)(0.0765)+0.0916(c0*c1)-0.0916(c1*c2)-0.021(c0*c2)
> subject to
> (c0^2+c1^2+c2^c3)=1
> i don't how to solve it using minimize because it contain '=' constraint.
> can anybody tell me how to solve it
> Thankyou
>
>


--

Daniel Huber
Metrohm Ltd.
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CH-9100 Herisau
Tel. +41 71 353 8585, Fax +41 71 353 8907
E-Mail:<mailto:dh(a)metrohm.com>
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From: Patrick Scheibe on 25 Feb 2010 20:02
Hi,

if you want an equality, then you have to use "equal" (==) and not
Set (=)

eq = (c0^2 + c1^2 + c2^2) (0.0765) + 0.0916 (c0*c1) - 0.0916 (c1*c2) -
0.021 (c0*c2);
constr = (c0^2 + c1^2 + c2^c3) == 1;
Minimize[{eq, constr}, {c0, c1, c2, c3}]

Cheers
Patrick

Am Feb 25, 2010 um 1:44 PM schrieb shama shahbaz:

> hi i have an objective function with constraints as below
> (c0^2+c1^2+c2^2)(0.0765)+0.0916(c0*c1)-0.0916(c1*c2)-0.021(c0*c2)
> subject to
> (c0^2+c1^2+c2^c3)=1
> i don't how to solve it using minimize because it contain '='
> constraint.
> can anybody tell me how to solve it
> Thankyou
>
>


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