Inline ; use anonymous functions instead.

obviously, I an not a programmer. I saw this code for newton raphson method (for schoolwork), but when i tried to run it, it said that Ishould use an anonymous functions instead. what should i do?

clear , clc
cf=input('ingrese funcion a evaluar: ');
syms x
f=inline(cf);
derivada=diff(cf,x);
df=inline(derivada);
tol = input('ingrese tolerancia: ');
error = 50;
x=input('ingrese un valor inicial: ');
n =0;
disp('    n             xi       error')
while (error>tol)
fprintf('\t%i\t%3.5f\t%f\n', n, x, error);
n=n+1;
x=x-f(x)/df(x);
error= abs(f(x));
end

[Stephen23]

"what should i do?"

Read the help on anonymous functions, practice a little bit, and then use one in your code.

[rocheska laconsay]

please help me out here. we do not study programming and out of the blue we need to pass a program

Answer 1

[madhan ravi]

see inline() input should be a string

cf=input('ingrese funcion a evaluar: ','s');

derivada=diff(str2sym(cf),x); %change this line too