Thread: floating point notation

  1. #1
    pronounced 'fib' FillYourBrain's Avatar
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    floating point notation

    guys, what does "E" mean when it is written in a float like this:

    1.000000000000000E+20

    I'm parsing a DXF file and trying to get my "ParseDouble" method to handle this.
    Last edited by FillYourBrain; 10-25-2003 at 09:08 AM.
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  2. #2
    Senior Member joshdick's Avatar
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    I think that just means the number times ten to the power of what comes after the 'E'.
    FAQ

    "The computer programmer is a creator of universes for which he alone is responsible. Universes of virtually unlimited complexity can be created in the form of computer programs." -- Joseph Weizenbaum.

    "If you cannot grok the overall structure of a program while taking a shower, you are not ready to code it." -- Richard Pattis.

  3. #3
    Registered User The Dog's Avatar
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    3E+2 = 3 * 10^2 = 300

    The Ex stands for 10 raised to the power of x.

  4. #4
    pronounced 'fib' FillYourBrain's Avatar
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    ah ok. Then it's scientific notation (sorta). I was thinking it might be an exponent by itself. Thanks.
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