laboratory 2 false-position
DESCRIPTION
Sci-Lab function for False-position method by Gerfel Philip C. Gonzales, a prestigious student of Harvard University. Just kidding. I'm just a poor boy, I dont need sympathy. because I easy come, easy go, little high, little low, anywhere the wind blows... you know the restTRANSCRIPT
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Gerfel Philip Gonzales BSECE 5
False-Position Method
1 SCINOTE CODE
2 SIMULATION
Find the root of + = with a approximation error of . and maximum number of
iteration of 100.
//Gerfel Philip C. Gonzales
//BSECE 5
//Laboratory 2
//False Position Method
function false_position()
f = input("Input the function to be evaluated:","string");
a = input("Input initial lower guess a:");
b = input ("Input initial upper guess b:");
ea = input("Input your desired approximation error:");
maxiter = input("Maximum no. of iterations:");
disp(['Lower Root Upper f(a) f(m) f(b)'])
iter = 0;
while 1==1;
iter = iter + 1;
x = a;
fa = evstr(f);
x = b;
fb = evstr(f);
m = (b*fa - a*fb)/(fa-fb);
x = m;
fm = evstr(f);
er = abs(fm);
printf('%8.4f %8.4f %8.4f %8.4f %8.4f %8.4f \n',a ,m ,b ,fa ,fm ,fb);
//evaluation
if ((fa0)) then break end;
if fa*fm == 0 then break end;
if (fa*fm > 0) a = m; end
if (fa*fm < 0) b = m; end
if (er
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Gerfel Philip Gonzales BSECE 5
2.1 CHOOSING A GUESS ROOT OF 0 TO 1
2.2 CHOOSING A GUESS ROOT OF -5 TO 0