Gerfel Philip Gonzales BSECE 5

Newton-raphson Method

1 SCINOTE CODE

//Gerfel Philip C. Gonzales

//BSECE 5

//Laboratory 3

//Simple Fixed-point Method

function fixed_point()

f = input("Input the rearranged function to be evaluated:","string");

p0 = input("Input initial guess p0:");

es = input("Input your desired stopping criterion:");

maxiter = input("Maximum no. of iterations:");

disp(['Root Error'])

for iter = 1:maxiter;

x = p0;

p = evstr(f);

er = abs((p-p0)/(abs(p)+%eps));

printf('%8.4f %f\n',p,er);

//evaluation

if (er

Gerfel Philip Gonzales BSECE 5

2 SIMULATION

Find the root of + = with a approximation error of . and maximum number of

iteration of 100 starting with x = 0.75.

Rearranged =

.

2.1 CHOOSING A GUESS ROOT OF 0 .75