Presenting this results in a tabulated form?
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi All,
I've written a code. Now, I want to tabulate this results using fprintf in a format that;
1'st column corresponds i(i.e. iteration number 1,2,3...), 2'st column corresponds xl, 3 column xu, 4'th f(xl), 5'th f(xu), 6'th xr, 7'th f(xr) and 8'th column corresponds ea. And also xl,xu,f(xl),f(xu) and f(xr) should have 7 digits after decimal point, xr must have 10 digits after decimal point. and finally ea must include 4 digits after decimal point.
Here is the code;
f=@(x)x^10-1
xl=0
xu=1.3
xr = xu;
es=0.01
fl=f(xl)
fu=f(xu)
iter=0;
iu = 0; il = 0;
while (1)
xrold = xr;
xr = xu - fu*(xl-xu)/(fl-fu);
fr = f(xr);
iter=iter+1;
if xr<0
elseif xr>0
ea=abs((xr-xrold)/xr)*100
end
test = fl*fr
if test<0
xu = xr
fu = f(xu)
iu = 0
il = il+1
if il>=2
fl=fl/2
end
elseif test>0
xl=xr
fl=f(xl)
il=0
iu=iu+1
if iu>=2
fu=fu/2
end
else
ea=0
end
if ea<es
break
end
end
ModFalsePos=xr
I've tried something but find out that some of the variables include only the last value of calculations. for example xl,xr, iter, but i want to present them in a listed form.
I'll appreciate for any help.
Thanks already for your interest!
0 commentaires
Réponse acceptée
Matt Fig
le 5 Nov 2012
Modifié(e) : Matt Fig
le 5 Nov 2012
Holy lack of semi-colons! Try this:
home
f=@(x)x^10-1;
xl=0;
xu=1.3;
xr = xu;
es=0.01;
fl=f(xl);
fu=f(xu);
iter=0;
iu = 0;
il = 0;
fprintf('\n\n%10s%10s%10s%10s%10s%10s%10s%10s\n',...
'iter','xl','xu','f(xl)','f(xu)','xr','f(xr)','ea')
fprintf([' ',repmat('-',1,74),'\n'])
while 1
xrold = xr;
xr = xu - fu*(xl-xu)/(fl-fu);
fr = f(xr);
iter=iter+1;
if xr<0
elseif xr>0
ea=abs((xr-xrold)/xr)*100;
end
test = fl*fr;
if test<0
xu = xr;
fu = f(xu);
iu = 0;
il = il+1;
if il>=2
fl=fl/2;
end
elseif test>0
xl=xr;
fl=f(xl);
il=0;
iu=iu+1;
if iu>=2
fu=fu/2;
end
else
ea=0;
end
if ea<es
break
end
fprintf('%10.2i%10.2f%10.2f%10.2f%10.2f%10.2f%10.2f%10.2f\n',...
iter,xl,xu,f(xl),f(xu),xr,f(xr),ea)
end
fprintf('\n\n')
ModFalsePos=xr;
Plus de réponses (1)
Voir également
Catégories
En savoir plus sur Signal Generation and Preprocessing dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!