fsolve does not work anymore

I tried to use fsolve in Matlab2013a, but it doesn't work anymore. Is is changed to fzero?

Here is my code:

x(:,1)=table(:,1);

x(:,2)=table(:,2)*10/60*2*pi;

x(:,3)=table(:,3)/100;

F=@(c)x(:,1).*x(:,2)./(c(1)*(x(:,1)/(3/2*1/2*c(2))).^2+x(:,2).*x(:,1)/(3/2*1/2))-x(:,3);

c0=[0.5,2];

options=optimset('Display','iter');

c1=fzero(F,c0,options);

But there is an error:

Error using fzero (line 233)

FZERO cannot continue because user supplied function_handle ==>

@(c)x(:,1).*x(:,2)./(c(1)*(x(:,1)/(3/2*1/2*c(2))).^2+x(:,2).*x(:,1)/(3/2*1/2))-x(:,3) 
failed with
the error below.

Attempted to access c(2); index out of bounds because numel(c)=1.

Error in twtable (line 82)

c1=fzero(F,c0,options);

What's going on here?

Thank you very much for your help!

Fan

Answer 1

[Matt J]

If you no longer have the Optimization Toolbox, you can probably get away with FMINSEARCH instead, since it is only a 2-parameter problem

 c1 = fminsearch(@(c) norm(F(c)) , c0)

Answer 2

[Walter Roberson]

fsolve() was not changed to fzero(). fzero() is a different routine that takes different arguments than fsolve() does.

fsolve() is part of the Optimization Toolbox, which you perhaps have not installed or not licensed for your R2013a system.