getting error Not Enough input arguments

Hi everybody ! I have this code as my main function : function [x,fx,ea,iter]=goldmin(f,xl,xu,es,maxit,varargin) % goldmin: minimization golden section search % [x,fx,ea,iter]=goldmin(f,xl,xu,es,maxit,p1,p2,...): % uses golden section search to find the minimum of f % input: % f = name of function % xl, xu = lower and upper guesses % es = desired relative error (default = 0.0001%) % maxit = maximum allowable iterations (default = 50) % p1,p2,... = additional parameters used by f % output: % x = location of minimum % fx = minimum function value % ea = approximate relative error (%) % iter = number of iterations if nargin<3,error('at least 3 input arguments required'),end if nargin<4||isempty(es), es=0.0001;end if nargin<5||isempty(maxit), maxit=50;end phi=(1+sqrt(5))/2; iter=0; fprintf('xl f(xl) xu f(xu)\n') fprintf('%.3f %9.3f %9.3f %9.3f\n',xl,f(xl,varargin{:}),xu,f(xu,varargin{:}) ) while(1) d = (phi-1)*(xu - xl); x1 = xl + d; x2 = xu - d; if f(x1,varargin{:}) < f(x2,varargin{:}) xopt = x1; xl = x2; else xopt = x2; xu = x1; end iter=iter+1; fprintf('%.3f %9.3f %9.3f %9.3f\n',xl,f(xl,varargin{:}),xu,f(xu,varargin{:}) ) if xopt~=0, ea = (2 - phi) * abs((xu - xl) / xopt) * 100;end if ea <= es iter >= maxit,break,end end x=xopt;fx=f(xopt,varargin{:}); and this is the function which i want to find the minimum point : function y=p3function(x) y=(1.5.*x.^6-2.*x.^4+12.*x);

each time i call the function i encounter : >> gm(p3function,-3,3) Error using p3function (line 2) Not enough input arguments. what should i do ?

Answer 1

[Massimo Zanetti]

Look into the "gm" function file, and heck how many inputs you have to supply. Most probably it requires more than 3 inputs.

[Erfan Hamdi]

could you check this one https://www.mathworks.com/matlabcentral/answers/306063-not-enough-input-arguments-error