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MathGroup Archive 1995

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Re: How to write a loop

  • To: mathgroup at smc.vnet.net
  • Subject: [mg2663] Re: How to write a loop
  • From: carolafb at sbox.tu-graz.ac.at (Carola Friederike Berger)
  • Date: Sun, 3 Dec 1995 02:54:25 -0500
  • Organization: Graz University of Technology, Austria

Ian Collier (ianc at wri.com) wrote:
: In article <48h4dh$rd5 at ralph.vnet.net>, "Enrico C. Walker"
: <ewalke1 at gl.umbc.edu> wrote:
: 
: >  I need to raise a number to some large exponent - i.e. 245 ^ 500.
: > I know that I may run into a problem by plugging it directly. so I'd
: like to find the result 
: > by using some sort of programming loop such.
: >  
: >      DO 250 times
: >          begin
: > 
: >               x = x * 245 ^ 2
: > 
: >          end
: >      PRINT X
: > 
: > Can I do such programming in MATHEMATICA? Please advise.
: > 
: > -RICO-
: 
: There is no need to resort to loops.
: 
: Any copy of Mathematica should be able to evaluate
: 
:     245^500
: 
: without significant problems. It takes a matter of seconds on 
: the Macintosh Quadra 700 on my desk.
: 
: I hope this helps.
: 
: --Ian
: 
: -----------------------------------------------------------
: Mathematica Training
: Wolfram Research, Inc.
: -----------------------------------------------------------
:
On my IBM-Compatible 486-66 it took 0.22 seconds to evaluate the code given
above (measured with: Timing[x = 1;Do[x = x*245^2,{250}]; x]).

-- 
Carola Friederike Berger alias carolafb at sbox.tu-graz.ac.at


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