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MathGroup Archive 2000

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Re: How to Import Numbers with + in the Exponential?

  • To: mathgroup at
  • Subject: [mg25655] Re: How to Import Numbers with + in the Exponential?
  • From: "P.J. Hinton" <paulh at>
  • Date: Wed, 18 Oct 2000 02:52:27 -0400 (EDT)
  • Organization: Wolfram Research, Inc.
  • References: <8sebr1$>
  • Sender: owner-wri-mathgroup at

On 16 Oct 2000, Lou Pecora wrote:

> I generate data in my C programs and write it to a file using  %e
> format in many of my programs.  This leads to numbers like  1.2e-01 and
> 3.6e+02.  When I use Import[] in Mathematica it handles the negative
> exponents fine, but things like e+02 or e+00 are treated like strings. 
> How can I get Mathematica to recognize positive exponents as numbers? 
> If I go into each file and eliminate the "+" it does recognize things
> as numbers, but I don't want to have to edit every data file put out in
> my calculations.  I'm hoping there is a simple workaround, otherwise I
> classify this behavior as a BAD 'feature'.  Help, anyone.  Thanks.

Answers to this and other frequently asked questions may be found at the
Wolfram Research Technical Support website:

This problem has been fixed for an upcoming release of Mathematica.

P.J. Hinton
User Interface Programmer                         paulh at
Wolfram Research, Inc.
Disclaimer: Opinions expressed herein are those of the author alone.

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