Input Arguments of Type Double

This is my function

function[x] = fixedpt(xin,tol)

    xold=xin;x=g(xin),

    while abs(x-xold)>tol,xold=x;x=g(xold), end

end

When I try to use it I get the error

Undefined function 'g' for input arguments of type 'double'.

Error in fixedpt (line 2)
  xold=xin;x=g(xin),

How can I fix this?

Answer 1

[Matt J]

You need to define g (a function? a vector?) so that MATLAB knows what it is.

[Matt J]

Jamie Commented:

All I know is that it is a .m file, the code was written by my lecturer and I was just supposed to be using it, I have no idea how the code works.

We were told to download it to matlab then plug in our numbers.

[Matt J]

Take the code to your lecturer, then. We have no way of knowing where "g" is supposed to come from if it's not defined in the mfile itself. Possibly you were meant to download that, too.

Answer 2

[Jamie]

Relocated to Comment by Matt J