Convert legacy microsoft MBF double to java double

Lo,
i'm trying to read from old btrieve database some records, with double saved MBF format from microsoft.
It seems it's mantissa, exponent and sign is completly different from IEEE double format, and dunno how to fix the problem, mostly don't know how to find exact structure of java double (how bits are used to design mantissa, sign, exponent).
any idea?

Already checked, it doesnt work.
(It doenst take much to translate it to java from c.)
It seems there's something strange about the mantissa, probably, or there is a mask over or the bytes and reversed, or only the gods, know what :o/

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Convert/Cast Single to double inaccurate.

Whilst I have read some background on floating opint numbers not being able to accurately store numbers such as 0.1, I am not clear why converting from single to double is so inaccurate.
Converting a single 0.1 to a double 0.1 yeilds
0.10000000149011600
But 0.1 can be represented in a double more accurately, even if not perfectly as
0.10000000000000000
This stems from the single representation of 0.1 actually equating to 0.10000000149011600 in binary.
However, we know that the single has a particular level of precision.
I would like a conersion function that converts single 0.10000000 to double 0.1000000000000000.
I can appreciate that the standard conversion functions would need to still exist as real numbers for engineering would suffer less overall inaccuracies with the existing rounding functions.
One other question:
Can the convertsion be affected by the OS/framework/hardware or will it be consistent on different machines? Are there any settings that can change the conversion behaviour?

There is no reason that we should explicitly convert a single precision number to a double precision number using some function as a simple assignment would do the same. Please review the following code:
float x = 10.5367f;
double a = Convert.ToDouble(x);
double b = (double)x;
double c = x; //same as conversion or casting
In the previous example, when x is declared as float, the memory space that is allocated is sufficient to hold the value of x as float along with precision. Now when we assign the value to some double variable (by conversion/casting/direct assignment), all
what happens is,
1. the space for the double variable is allocated
2. the value is copied from single the single variable to double variable.
Now obviously, the value of the single variable does not span as much memory space as the double variable. So when copied to double the remaining memory space of the double variable is still filled up with garbage data. The actual value of the single variable
is still preserved upto the range of single precision.
So frankly speaking, there is no such straightforward way that can be used to fill the garbage digits with 0s.
I personally recommend that you use "decimal" instead of "double" if any such conversion is required.
Thanks.

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The double or Double value doesn't contain the E. Only the String representation does. So, you should have the correct value (unless you are trying to force too many significant digits, but that isn't true for your example.

How do I convert a String to double~?

The contents of a file named data.txt are shown below:
1.2402 .7930 .3254 -.0994 -.2930 -.4233 -.4539 -.1423
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how can i convert an Object into double?
do i need to import anything?

I think you mean, such a thing:
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Why can I not Convert a Microsoft Office 2013 Document to a PDF using the options found in the Context Menu? (Ex: Convert to PDF, Combine Supported Files into PDF?)
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Zach Moses
Direct Phone and Fax (615) 577-5814 | [email protected]
W Squared, Inc.
5500 Maryland Way | Suite 200 | Brentwood, TN 37027 | www.wsquared.com<http://www.wsquared.com>
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I am trying to convert a Microsoft Publisher Document to PDF but it fails every time although the reason is not clear. Any ideas?

I am trying to convert a Microsoft Publisher Document to PDF but it fails every time although the reason is not clear. Anyone else had problems like this and how do I solve it? Thanks. Ray

Hi raythree,
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Clear your browser cache (steps to do this vary by browser).
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I do not get a readable or editable PDF file that has been converted to Microsoft Word.

In the past I have been able to convert PDF files to MicroSoft Word, and Edit and Save the Documents. Now, the converted files are unreadable and uneditable. How do I correct this problem?

Thanks for the email, Stacy!
I don't have an old PDF file that I converted to MicroSoft Word, however the new file that I am trying to convert and edit is the same kind of file that I've converted and edited before; An Invoice from the same Company. Is there a possibility that a download, MicroSoft Compatibility Pack for the 2007 Office System, onto MicroSoft Windows XP Home Edition Version 2002 computer might be causing the problem? Should I download to (.doc) or (.docx)? Any help will be greatly appreciated!
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Date: Fri, 21 Mar 2014 08:48:32 -0700
From: [email protected]
To: [email protected]
Subject: I do not get a readable or editable PDF file that has been converted to Microsoft Word.
    Re: I do not get a readable or editable PDF file that has been converted to Microsoft Word.
    created by StacySison in Adobe ExportPDF - View the full discussion
Hi Joseph,
I'd like to assist!
Have you tried converting one of your old PDF's that have worked in the past to see if it still works?
Are these files scanned to PDF files?
You may want to try utilizing the OCR solution.
Let me know if that works.
Looking forward to hearing back from you!
Kind regards, Stacy
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After scanning my document and converting to Microsoft Word the size of characters are different

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Hmmm.. Pretty basic just look at the example:
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Message was edited by:
user591884

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801283 wrote:
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Convert legacy microsoft MBF double to java double

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