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<DIV><SPAN class=033572412-08042003><FONT color=#0000ff
size=2>Pedro,</FONT></SPAN></DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff size=2>You seem to have
a misconception of how computers work. They are binary (base 2) not
decimal (base 10). Thus numbers can only be represented as the sum of
powers of two. Since all integers (numbers without fractional parts) can
be represented exactly as the sum of powers of two they can be stored and
manipulated without any loss of precision (excepting division
operations).</FONT></SPAN></DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff size=2>All floating
point numbers (numbers with fractional parts), except for those rare ones where
the fractional part is an exact sum of powers of two, must be represented by an
approximation of its value. The precision of a floating point number tell
you how close to actual value the approximate value can come. Thus for
Singles with about seven digits of precision, you know that up to the seventh
digit accurately represent the actual value and any digits beyond that should
not be counted on to be accurate.</FONT></SPAN></DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff size=2>Thus you must
choose between the exact representation of integers and the approximate
representation of floating point numbers. In later versions of VB and
other languages there is now a third choice, the currency datatype. This
is a compromise between the two fundamental numeric datatypes. It is a
scaled integer used to represent floating point numbers where you do not want
more than four digits of precision for the fractional part.</FONT></SPAN></DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=033572412-08042003><FONT color=#0000ff size=2>To get what you
want, you must pick from these numeric datatypes and then use the proper
rounding and formatting functions to get the numbers to display as you
desire. There are no other choices if you are going to do it on a
computer.</FONT></SPAN></DIV>
<DIV> </DIV><!-- Converted from text/rtf format -->
<P><SPAN lang=en-us><B><FONT color=#0000ff>Charles Wortz</FONT></B></SPAN>
<BR><SPAN lang=en-us><FONT color=#0000ff>Software Development
Division</FONT></SPAN> <BR><SPAN lang=en-us><FONT color=#0000ff>Texas Education
Agency</FONT></SPAN> <BR><SPAN lang=en-us><FONT color=#0000ff>1701 N. Congress
Ave</FONT></SPAN> <BR><SPAN lang=en-us><FONT color=#0000ff>Austin, TX
78701-1494</FONT></SPAN> <BR><SPAN lang=en-us><FONT
color=#0000ff>512-463-9493</FONT></SPAN> <BR><SPAN lang=en-us><FONT
color=#0000ff>CWortz@tea.state.tx.us</FONT></SPAN> </P>
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Pedro Janssen
[mailto:pedro@plex.nl] <BR><B>Sent:</B> Tuesday 2003 Apr 08 06:17<BR><B>To:</B>
accessd@databaseadvisors.com<BR><B>Subject:</B> Re: [AccessD] roundup - decimal
places<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Hello Charlotte,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>i want truly round numbers with 1
precision.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Pedro Janssen</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=cfoust@infostatsystems.com
href="mailto:cfoust@infostatsystems.com">Charlotte Foust</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=accessd@databaseadvisors.com
href="mailto:accessd@databaseadvisors.com">accessd@databaseadvisors.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 07, 2003 7:41
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [AccessD] roundup - decimal
places</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=869084117-07042003><FONT face="Comic Sans MS" color=#0000ff
size=2>You're going to have to explain whether you want to truly round numbers
or just display them that way. The Decimal places setting addresses the
display, not the precision.</FONT></SPAN></DIV>
<DIV><SPAN class=869084117-07042003><FONT face="Comic Sans MS" color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=869084117-07042003><FONT face="Comic Sans MS" color=#0000ff
size=2>Charlotte Foust</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Pedro Janssen
[<A href="mailto:pedro@plex.nl">mailto:pedro@plex.nl</A>] <BR><B>Sent:</B>
Monday, April 07, 2003 9:25 AM<BR><B>To:</B> <A
href="mailto:accessd@databaseadvisors.com">accessd@databaseadvisors.com</A><BR><B>Subject:</B>
Re: [AccessD] roundup - decimal places<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Hello Charles,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>when i type 5,1 i type 5,1 and not
.</FONT></DIV>
<DIV><FONT face=Arial size=2>How does a computer changes 5,1 into 5,11415899
although i type 5,1.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>What is the use of decimal places:1, with field
size: single, when the pc makes a lott of decimal places from it. Then this
property better wasn't available when using numbers (not
currency).</FONT></DIV>
<DIV><FONT face=Arial size=2>Is there a way to roundup the numbers to
1decimal place without using currency.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Pedro Janssen</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=CWortz@tea.state.tx.us
href="mailto:CWortz@tea.state.tx.us">Wortz, Charles</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=accessd@databaseadvisors.com
href="mailto:accessd@databaseadvisors.com">accessd@databaseadvisors.com</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, April 07, 2003 5:42
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [AccessD] roundup -
decimal places</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=853123615-07042003><FONT color=#0000ff
size=2>Pedro,</FONT></SPAN></DIV>
<DIV><SPAN class=853123615-07042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=853123615-07042003><FONT color=#0000ff size=2>Remember,
you are working on a binary computer. Thus decimal numbers must
be approximated as the sum of powers of two. For integer numbers
these approximations are exact representations. For floating point
numbers, these approximations are just that - approximations. None
of your floating point numbers are stored with just one digit to the right
of the decimal point, they are only displayed to you as
such.</FONT></SPAN></DIV>
<DIV><SPAN class=853123615-07042003><FONT color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=853123615-07042003><FONT color=#0000ff size=2>If you
cannot learn to live with floating point numbers, then convert them to the
currency datatype. The currency datatype will meet many of you
computational needs.</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV> </DIV><!-- Converted from text/rtf format -->
<P><SPAN lang=en-us><B><FONT color=#0000ff>Charles Wortz</FONT></B></SPAN>
<BR><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
Pedro Janssen [mailto:pedro@plex.nl] <BR><B>Sent:</B> Monday 2003 Apr 07
10:30<BR><B>To:</B> AccessD@databaseadvisors.com<BR><B>Subject:</B>
[AccessD] roundup - decimal places<BR><BR></FONT></P>
<DIV><FONT face=Arial size=2>Hello Group,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>i have a tableA with 5 fields (field size:
single, decimal places:1)</FONT></DIV>
<DIV><FONT face=Arial size=2>Not all fields have values.</FONT></DIV>
<DIV><FONT face=Arial size=2>I want the difference from al those field, so
i added a field diff.</FONT></DIV>
<DIV><FONT face=Arial size=2>I made an update query with the following
sql:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>UPDATE TableA SET TableA.[diff] =
100-Nz([field1],0)-Nz([[field2],0)- etc. etc.;<BR></FONT></DIV>
<DIV><FONT face=Arial size=2>The result that i get in field diff gives
many records with more then 1 decimal places.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>For example: When i have a record which
contains values like 5,1 and 94,9 (all values are typed in this way and
are not calculated) i get as result 0,11176548</FONT></DIV>
<DIV><FONT face=Arial size=2>or a record that contains values like 20,5
and 20,5 i get as result 59,997854.</FONT></DIV>
<DIV><FONT face=Arial size=2>Some result do have only one decimal
place.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>How is this possible? </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>TIA</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Pedro
Janssen</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>