MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: precisions


What is the actual precision of the input? Are you entering in
dimensions of beams, etc? I wonder what the gurus will say on the
subject of tracking precision through a set of calculations.

On Apr 12, 2005 5:26 AM, Tun Myint Aung <TMA at nus.edu.sg> wrote:
> 
> Hi All,
> 
>     I am doing a calculation involving eigenvalues and eigenvectors for
> structural mechanics. I encountered with difficulties in numerical
> calculation which is very sensitive to precisions of numerical numbers.
> I used "SetPrecision[inputdata,100] for my input data. But after I got
> eigenvalues and eigenvectors, these numbers are "MachinePrecision". I
> tried to change the precision in "Eigenvalues", but there are no options
> for that. How can I set the precision for the whole notebook?
> 
> With Regards,
> Tun Myint Aung (Graduate Student)
> Civil Engineering Department
> National University of Singapore
> E1A 02-18
> E-mail: g0202015 at nus.edu.sg (or) tma at nus.edu.sg
> 
> 


-- 
Chris Chiasson
Kettering University
Mechanical Engineering
Graduate Student
1 810 265 3161


  • Prev by Date: Re: local symbols inside Module
  • Next by Date: confusion about Thread[]
  • Previous by thread: precisions
  • Next by thread: Re: precisions