Problem with Argument and fsolve
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Hi everyone, I am trying to solve:
S= (50625*(arg(x*i + y - 1393 - 746*i) - 3560289735917593/36028797018963968)^2)/pi^2 + ((x + (y - 987)^2 - 24025)^(1/2)/2 - 8643/20)^2 + (3240000*(arg(x*i + y - 259 - 1571*i) + 8955599335723659/288230376151711744)^2)/(169*pi^2) + (90000*(arg(x*i + y - 375 - 629*i) - 3959779706285659/144115188075855872)^2)/pi^2
end
with fsolve. But i am getting following error message:
'Undefined function 'arg' for input arguments of type 'double'.
Error in myfun (line 2)
F = [((x(1) + (x(2) - 987)^2 - 24025)^(1/2)/2 - 8643/20)/(2*(x(1) + (x(2) - 987)^2 - 24025)^(1/2)) -
(6480000*((17*pi)/60 + arg(x(1)*i + x(2) - 259 - 1571*i))*(imag(x(1)) - real(x(2)) + 259))/(169*pi
Error in fsolve (line 241)
fuser = feval(funfcn{3},x,varargin{:});
Caused by:
Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue.
'
Please help me out in this. Thanks
5 件のコメント
Walter Roberson
2013 年 4 月 29 日
? Your current function has no reference to arg(). Are you possibly using matlabFunction() to generate the function in some code you have not shown here? The myfun() you have shown here has no relationship to finding S or Sx or Sy.
回答 (1 件)
Shashank Prasanna
2013 年 4 月 29 日
Satendra, arg is not a function in MATLAB but you the function 'angle' computes the argument of the complex number which I believe you are trying to find. In your 'S' replace 'arg' with 'angle'
1 件のコメント
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