Tolerance, correct digits

i have a code where i have aa while loop and the condition is that the diffrence between two variables is bigger than the tolerence.

If the tolerane is 5E5 what does it actually means ? this has to do with correct digits. It is a numerical method question.

Answer 1

[M]

If the tolerane is 5E5 what does it actually means ?

It depends...

Can you provide the code ?

And a little context so that we can help you ?

[mohamed hassan]

newton

a =19
k=3
s=1
tol = 5E-5
while ((d> tol)|
 s = s + a;
 a = a*6/(k+1);
 d = abs(s-a)
 k=k+1;
 end; 
 

Answer 2

[Akihumi]

You can try to type that in Command Window and you might have your answer right there :)

[mohamed hassan]

I tried, and i Think it means that it is the error we can tolerate where tolerance is 5E-5 = 0.000005.

[Akihumi]

Well, I think xEy means

[mohamed hassan]

Yes and the y in your equation is correct digits but why I dont know how to choose x or why x is 5 in my case.

[Akihumi]

I see... but what is the purpose of the while loop and how do you decide the equations in that? For example, why a = a*6/(k+1); ?