List Archives >  Mathcad List Archive >  Archive by date >  This Month By Date >  This Month By Topic

[mathcad] Re: Minimizing a Function

Search email archive for  

[mathcad] Re: Minimizing a Function
Author: Steve Ellison    Posted: Mon, 28 Jul 2003 17:22:09 +0100
Could you rewrite the function definition in terms of x only, leaving b as a constant specified elsewhere..? >>> 28/07/2003 17:18:40 >>> Dear All I have a function of 2 variables. I am trying to find the value of one variable which minimizes the function while keeping the other fixed. The minimize function doesn't want to let me keep one fixed. e.g. func(x,a):=...... given x=g1 b=g2 m:=minimize(func,x,b) doesn't work because it tries to minimize across x and b, whereas I want b to be fixed and I cannot leave b out of the minimze function. Anybody know of a work around? Best Regards Chris Wilkinson * Senior Research Scientist CALCE Electronics Products and Systems Center * 3200 Martin Hall University of Maryland * College Park * MD * 20742 * USA Tel 1 301 405 4563, Fax 1 301 314 9269 --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: /> ******************************************************************* This email and any attachments are confidential. Any use, copying or disclosure other than by the intended recipient is unauthorised. If you have received this message in error, please notify the sender immediately via +44(0)20 8943 7000 or notify and delete this message and any copies from your computer and network. LGC Limited. Registered in England 2991879. Registered office: Queens Road, Teddington, Middlesex, TW11 0LY, UK --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: />

[mathcad] Re: Minimizing a Function
Author: Samir Khan    Posted: Mon, 28 Jul 2003 17:27:12 +0100
Chris, Define func_1(x):=func(x,b) and minimize func_1 instead. Samir "Chris Wilkinson" To: Mathcad Discussion List du> cc: Subject: [mathcad] Minimizing a Function 07/28/2003 05:18 PM Please respond to mathcad Dear All I have a function of 2 variables. I am trying to find the value of one variable which minimizes the function while keeping the other fixed. The minimize function doesn't want to let me keep one fixed. e.g. func(x,a):=...... given x=g1 b=g2 m:=minimize(func,x,b) doesn't work because it tries to minimize across x and b, whereas I want b to be fixed and I cannot leave b out of the minimze function. Anybody know of a work around? Best Regards Chris Wilkinson * Senior Research Scientist CALCE Electronics Products and Systems Center * 3200 Martin Hall University of Maryland * College Park * MD * 20742 * USA Tel 1 301 405 4563, Fax 1 301 314 9269 --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: /> --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: />

[mathcad] RE: Minimizing a Function
Author: Gray, Steven G    Posted: Mon, 28 Jul 2003 13:46:31 -0400
Suppose you define a new function, g(x), equal to f(x,b). Can you now minimize g? Steven Gray -----Original Message----- From: Chris Wilkinson /> Sent: Monday, July 28, 2003 12:19 PM To: Mathcad Discussion List Subject: [mathcad] Minimizing a Function Dear All I have a function of 2 variables. I am trying to find the value of one variable which minimizes the function while keeping the other fixed. The minimize function doesn't want to let me keep one fixed. e.g. func(x,a):=...... given x=g1 b=g2 m:=minimize(func,x,b) doesn't work because it tries to minimize across x and b, whereas I want b to be fixed and I cannot leave b out of the minimze function. Anybody know of a work around? Best Regards Chris Wilkinson * Senior Research Scientist CALCE Electronics Products and Systems Center * 3200 Martin Hall University of Maryland * College Park * MD * 20742 * USA Tel 1 301 405 4563, Fax 1 301 314 9269 --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: /> --- The Mathcad List - Discussion, Support & News Contributions: /> Hosted by: Adept Scientific http://www.adeptscience.com List Archive: http://lists.adeptscience.co.uk/ --- Would you like this to come to a different email address? --- Simply leave the mailing list (see below) and re-join by sending a blank email from the new address to: or --- If you do not want to be on the Mathcad list, simply send a blank email (no subject or message needed) to: />

Previous by date: [mathcad] Minimizing a Function,  Chris Wilkinson
Next by date: [mathcad] Re: Minimizing a Function, Samir Khan
Previous thread: [mathcad] Re: Multiprocessor system, Colin G Clarke
Next thread: [mathcad] Re: Minimizing a Function,  Steve Ellison