Why am I getting "Unrecognized function or variable 'fp'."?

Tried to make a fixed point iteration code in MATLAB, but I am not sure why I am unable to call my function without receiving this error.

Answer 1

[DGM]

Functions which are local to a script or local to another function are not accessible outside that scope. If you want your function to be accessible, it needs to be written as a function, not a script with a local function. Delete all the non-comment lines prior to the function() definition (get rid of clc; clear all).

[Voss]

In addition to @DGM's advice, when calling the function, you'll need to use its file name:

>> fixedp(g,p0,tol,n)

Change the file name to fp.m if you want to use that name.

https://www.mathworks.com/matlabcentral/answers/396964-why-the-function-file-should-have-the-same-name-as-the-first-function-in-the-file

[DGM]

Oh good catch!