```Date: Jan 16, 2013 11:46 AM
Author: Steven Lord
Subject: Re: sum of function handles

"dert " <dert2221907@yandex.com> wrote in message news:kd5lkh\$el0\$1@newscl01ah.mathworks.com...> Hi, i want to sum two function handle. the functions that i want to sum > are following;>>   f1=0;>     for i=1:20>          f2=f2(x(1),x(2),x(3))>          f1=f1+f2 end> how can i do by using function handle? the following is true?>> f1=@(x)(0);     for i=1:20>    f2=@(x)(f2(x(1),x(2),x(3)))>    f1=@(x)(f1(x)+ f2(x));> end>> Can anyone help me? Because i use this last summation function for > fminsearchOne way to do it:functionsTBE = cell(1, 5);testvalue = 0;for k = 1:5    functionsTBE{k} = @(x) sin(k*x);    testvalue = testvalue + functionsTBE{k}(3);endf = @(x) sum(cellfun(@(y) y(x), functionsTBE));f(3) % Should match testvalueabs(f(3)-testvalue)Alternately, if your expressions aren't too complicated and you have Symbolic Math Toolbox, write your functions as symbolic expressions, add them, then use matlabFunction to convert the sum into a function.-- Steve Lordslord@mathworks.comTo contact Technical Support use the Contact Us link on http://www.mathworks.com
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