How do i solve f(x,k)=sin(x)-kx on matlab?

I am struggling with solving the above eqn on matlab, can someone please give some guidance, thanks!

[Star Strider]

What do you mean by ‘solve’?

Please go into some detail as to what do you want to do with it.

[John D'Errico]

"Solve" it? Solve for what? Exactly what problem are you solving for? What unknown? Do you want to solve for that expression equal to zero? Do you want to solve for x or k? Are you looking for a symbolic or numerical solution? Is this homework?

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer

Answer 1

[Orion]

what are x ? k ?

variables ? parameters ?

Anyway, see the doc of fzero

espectially this part, which seems to be what you need

myfun = @(x,c) cos(c*x);  % parameterized function
c = 2;                    % parameter
fun = @(x) myfun(x,c);    % function of x alone
x = fzero(fun,0.1)