Tolerance, correct digits

Question

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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.

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Answer 1

M 2020-5-12

0 个投票

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 2020-5-12

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 2020-5-12

0 个投票

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

mohamed hassan 2020-5-12

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 2020-5-12

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); ?