Fixed Point Iteration in Numerical Methods for any equation

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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'])

Answers (1)

Vimal Rathod
Vimal Rathod on 3 Mar 2021
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".

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