[AccessD] roundup - decimal places

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.
 
Charlotte Foust

	-----Original Message-----
	From: Pedro Janssen [mailto:pedro at plex.nl] 
	Sent: Monday, April 07, 2003 9:25 AM
	To: accessd at databaseadvisors.com
	Subject: Re: [AccessD] roundup - decimal places
	
	
	Hello Charles,
	 
	when i type 5,1 i type 5,1 and not .
	How does a computer changes 5,1 into 5,11415899 although i type
5,1.
	 
	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).
	Is there a way to roundup the numbers to 1decimal place without
using currency.
	 
	Pedro Janssen

		----- Original Message ----- 
		From: Wortz, Charles <mailto:CWortz at tea.state.tx.us>  
		To: accessd at databaseadvisors.com 
		Sent: Monday, April 07, 2003 5:42 PM
		Subject: RE: [AccessD] roundup - decimal places

		Pedro,
		 
		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.
		 
		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.
		 
		 

		Charles Wortz 
		Software Development Division 
		Texas Education Agency 
		1701 N. Congress Ave 
		Austin, TX 78701-1494 
		512-463-9493 
		CWortz at tea.state.tx.us 

		-----Original Message-----
		From: Pedro Janssen [mailto:pedro at plex.nl] 
		Sent: Monday 2003 Apr 07 10:30
		To: AccessD at databaseadvisors.com
		Subject: [AccessD] roundup - decimal places
		
		
		Hello Group,
		 
		i have a tableA with 5 fields (field size: single,
decimal places:1)
		Not all fields have values.
		I want the difference from al those field, so i added a
field diff.
		I made an update query with the following sql:
		 
		UPDATE TableA SET TableA.[diff] =
100-Nz([field1],0)-Nz([[field2],0)- etc. etc.;
		
		The result that i get in field diff gives many records
with more then 1 decimal places.
		 
		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
		or a record that contains values like 20,5 and 20,5 i
get as result 59,997854.
		Some result do have only one decimal place.
		 
		How is this possible? 
		 
		TIA
		 
		Pedro Janssen

		
  _____  


		

		_______________________________________________
		AccessD mailing list
		AccessD at databaseadvisors.com
		http://databaseadvisors.com/mailman/listinfo/accessd
		Website: http://www.databaseadvisors.com
		

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://databaseadvisors.com/pipermail/accessd/attachments/20030407/1634ce75/attachment-0001.html>