Fixed Point Iteration in Numerical Methods for any equation

This code is for exp(-x)-x only, but I want to edit the program so it can compute any other equation using input('Enter the equation: ')

format('long','g')

i=1;

x(i)=0; %initial value

Ea=0.001;

error(i)=9999;

while error(i)>=Ea

x(i+1)=exp((-x(i)));

error(i+1)=abs(((x(i+1)-x(i))/(x(i+1))));

i=i+1;

end

disp(' root Ea(%)');

disp([x',error'])

Answer 1

[Vimal Rathod]

Hi,

If you want to get the equation through string input you could use "str2func" to convert the string to function. The function format to use is of "Anonymous Function".