Issue 2368:  Clearer information describing different rounding types is needed                                                                                                                                      (currency-rtf)
Source:  (, )
Nature:  Revision
Severity: 
Summary: Summary: RoundingType.ROUND_DOWN – The textual description needs to be far more
 explicit and/or include examples for both positive and negative numbers.
 Round toward zero? Is the rounding digit truly ignored?  e.g. Let the
 internal precision be two.
 

Resolution: resolved in Currency 2 RTF
Revised Text: :  From Issue 2268 the text clearly specified that the rounding digit will be ignored, however a few examples would be good to show.   
Revised Text:  
In section 2.3.4 After the bulleted list, add the following:
Examples:
ROUNDING_DIGIT = 5
INTERNAL_PRECISION = 2

ROUND_DOWN(-1.239) produces -1.23 
ROUND_DOWN(-1.234) produces -1.23 
ROUND_DOWN(1.230) produces 1.23
ROUND_DOWN(1.239) produces 1.23

ROUND_UP(-1.239) produces -1.24
ROUND_UP(-1.234) produces -1.23
ROUND_UP(1.230) produces 1.23
ROUND_UP(1.239) produces 1.24

ROUND_FLOOR(-1.239) produces -1.24
ROUND_FLOOR(-1.230) produces -1.23
ROUND_FLOOR(1.230) produces 1.23
ROUND_FLOOR(1.239) produces 1.23

ROUND_CEILING(-1.239) produces -1.23
ROUND_CEILING(-1.234) produces -1.23
ROUND_CEILING(1.230) produces 1.23
ROUND_CEILING(1.239) produces 1.24


Actions taken:
January 11, 1999: received issue
May 4, 2000: closed issue
Discussion: 
Discussion: RoundingType.ROUND_DOWN - The textual description needs to be far more explicit and/or include examples for both positive and negative numbers. Round toward zero? Is the rounding digit truly ignored? e.g. Let the internal precision be two. Thus: ROUND_DOWN(-2.135) yields -2.13 ? ROUND_DOWN(2.135) yields 2.13 ? RoundingType.ROUND_UP - The textual description needs to be far more explicit and/or include examples for both positive and negative numbers. Round away from zero? e.g. Let the rounding digit be 5, with an internal precision of 2. Thus: ROUND_UP(-2.135) yields -2.14 ? ROUND_UP(2.135) yields 2.14 ? RoundingType.ROUND_FLOOR - The textual description needs to be far more explicit and/or include examples for both positive and negative numbers. Round toward negative infinity? e.g. Let the rounding digit be 5, with an internal precision of 2. Thus: ROUND_FLOOR(-2.135) yields -2.14 ? ROUND_FLOOR(2.135) yields 2.13 ? RoundingType.ROUND_CEILING - The textual description needs to be far more explicit and/or include examples for both positive and negative numbers. Round toward positive infinity? e.g. Let the rounding digit be 5, with an internal precision of 2. Thus: ROUND_CEILING(-2.135) yields -2.13 ? ROUND_CEILING(2.135) yields 2.14 ? RoundingType.DONT_ROUND - DO_NOT_ROUND would be more explicit and prohibit confusion as the contraction might cause some confusion. 


End of Annotations:=====
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From: Robert_Mickley@CYBORG.COM
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To: issues@omg.org
cc: Robert_Mickley@CYBORG.COM, Amy_Griffis@CYBORG.COM
Date: Mon, 11 Jan 1999 21:28:52 -0700
Subject: Currency RTF Issues
Content-Disposition: inline



Today is the deadline for comments for the Currency RTF.  Below is an
itemized list of additions to that list.



Issue Title: Clearer information describing the different rounding
types is
needed
Issue Type: Text Revision
Issue Description:
RoundingType.ROUND_DOWN egative numbers.
Round toward zero? Is the rounding digit truly ignored?  e.g. Let the
internal precision be two. Thus:

             ROUND_DOWN(iption needs to be far more
explicit and/or include examples for both positive and negative
numbers.
Round away from zero? e.g. Let the rounding digit be 5, with an
internal
precision of 2. Thus:

          ROUND_UP(UP(2.135) yields 2.14 ?

RoundingType.ROUND_FLOOR ecision of 2. Thus:

          ROUND_FLOOR(-2.135) yields 2.14 ?
          ROUND_FLOOR(2.135) yields 2.13 ?

RoundingType.ROUND_CEILING - The textual description needs to be far
more
explicit and/or include examples for both positive and negative
numbers.
Round toward positive infinity? e.g. Let the rounding digit be 5, with
an
internal precision of 2. Thus:

          ROUND_CEILING(-2.135) yields xplicit and prohibit
confusion as the contraction might cause some confusion.