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Re: How to write a loop

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  • Subject: [mg2547] Re: How to write a loop
  • From: David Pearson <sgspedav at>
  • Date: Mon, 20 Nov 1995 01:12:58 -0500
  • Organization: University of Reading, U.K.

Hi, y'all.

Mathematica can handle 245^500, no problem (at least it can on
the machine I use).

In[1]:= 245^500

38286192822286048485411336 etc., I deleted the rest because it takes
up 18 lines.

It took less than a second to calculate it.

But if you want to make a loop anyway, do this:

In[5]:= x=1

Out[5]= 1

In[6]:= Do[x = x * 245, {i, 1, 500}]

This seems a little bit slower, but still less than a second.

David Pearson,

On 17 Nov 1995, Enrico C. Walker 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.

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