LanX,

It has an example of a comparison of Binary Floating Point ( BFP ) and a DFP using both hardware and software to show: 

# ./dfp_hw 10 1.000001 60000000
double  fund= 10.0000000000 interest= 1.000000999999999917733362053700
Decimal fund= 10.0000000000 interest= 1.000001000000000000000000000000
Print final funds
  double  fund = 1141973124493563816969240576.0000000000
  Decimal fund = 1141973130130727445029596475.9717600000

[download]

That's a big difference! The difference starts after '11419731'...

Also, my under graduate degree was in math!

Regards...Ed

"Well done is better than well said." - Benjamin Franklin

In reply to Re^2: Decimal Floating Point (DFP) and does Perl needs DFP? by flexvault
in thread Decimal Floating Point (DFP) and does Perl needs DFP? by flexvault

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.