Newtons method?

[jmw]

When using iteration, how do you know if:
[ul][li]if you are not getting convergence?[/li]
[li]that the result is good and you have not simply reached the iteration limit?[/li][/ul]

If Exc el doesn't give these indications, should one then use Newtons method or one of the extensions of that?

JMW

http://www.ViscoAnalyser.com

 

[IRstuff]

???

Excel uses Newton's method. How you terminate the process or check for errors is not described in Newton's Method.

The easiest way to check is to compare the solution to the graph of the function.

TTFN

FAQ731-376

 

[jmw]

Thanks IRStuff,
this relates to my other query in the Petroleum Eng Other topics forum: thread481-227786

JMW

http://www.ViscoAnalyser.com