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MathGroup Archive 1997

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read data in the "1.234*10^-8" form?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg7910] read data in the "1.234*10^-8" form?
  • From: ahq at mail.utexas.edu (Dynamics)
  • Date: Mon, 21 Jul 1997 03:22:01 -0400
  • Organization: UT-Austin
  • Sender: owner-wri-mathgroup at wolfram.com

Hi, ALL:

I have a output, input format quesstion:

I output a series of data to a file with:

streamout1 = OpenWrite["afile"];
For[i=0....
       Write[streamout1, expr[[i]] ];
   ];
Close[streamout1];
Clear[streamout1]

then the "afile" in a column format is:
0
0.1
0.2
1.1*10^-8
2.2*10^-8
3.3*10^-8
...

but when i try read the data in "afile" use:

ReadList["afile", Real]

it only read the 0, 0.1, 0.2.
it can't read the format in "*10^-8"

Now my question is:
(1). How to let the program can read "*10^-8" ?
(2). or is there a way that i can output to "afile"
     in the format like "1.1e-8" that the Mathematica 
     can read? 


Thanks very much.... 

Jihshin
ahq at mail.utexas.ede


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