Difference between revisions of "Calc/Features/Automatic decimal place adjustment"

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(Adjusting decimal places by column width)
(Adjusting decimal places by column width)
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=== Adjusting decimal places by column width ===
 
=== Adjusting decimal places by column width ===
[[Image:Calc_Automatic_decimal_adjustment.png|thumb|220px|right|(1) Optimal column width, with maximum number of significant digits shown, (2) adjusting by truncating decimals, (3) switching to scientific notation, (4) truncating decimals in the scientific notation, and (5) all adjustment options exhausted, displaying '''###''' as a last resort.]]
 
 
 
When the number format for a cell is ''General'' and its displayed content is numeric, it is subject to automatic decimal place adjustment based on available column width.  The adjustment is performed in the following fashion.
 
When the number format for a cell is ''General'' and its displayed content is numeric, it is subject to automatic decimal place adjustment based on available column width.  The adjustment is performed in the following fashion.
  
 
First, Calc tries to fit the displayed number within the cell width by reducing the number of decimal places.  If the number doesn't fit even after all the decimal places have been exhausted, it then switches to scientific notation and continue adjusting decimal places in that notation.  If the number still doesn't fit even with the scientific notation, it displays '###' in place of the original value.
 
First, Calc tries to fit the displayed number within the cell width by reducing the number of decimal places.  If the number doesn't fit even after all the decimal places have been exhausted, it then switches to scientific notation and continue adjusting decimal places in that notation.  If the number still doesn't fit even with the scientific notation, it displays '###' in place of the original value.
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[[Image:Calc_Automatic_decimal_adjustment.png|thumb|220px|center|(1) Optimal column width, with maximum number of significant digits shown, (2) adjusting by truncating decimals, (3) switching to scientific notation, (4) truncating decimals in the scientific notation, and (5) all adjustment options exhausted, displaying '''###''' as a last resort.]]
  
 
== Migration ==
 
== Migration ==

Revision as of 18:43, 3 February 2010

Automatic decimal place adjustment

Specification Status
Author Kohei Yoshida
Last Change See wiki history
Status In progress in CWS koheiautodecimal

Abstract

Cells containing either numeric value or formula whose result is numeric are subject to automatic adjustment of decimal places based on the available column width. The automatic decimal place adjustment takes place only when their number format is General.

References

Reference Document Check Location (URL)
Issue ID (required) available Issue 26826 Issue 46511
Test case specification (required) n/a

Contacts

Role Name E-Mail Address
Developer Kohei Yoshida kyoshida@novell.com
Quality Assurance undetermined
Documentation up for grabs!
User Experience up for grabs!

Detailed Specification

Options dialog

In the Options dialog, the Calculate page will have a new check box labeled Limit decimals for general number format. When this check box is checked, you can specify the maximum number of decimal places allowed for cells with General number format. A value of 0 to 20 is allowed as the maximum number of decimal places.

When this check box is not checked, cells with General number format will use as many decimal places as the column width allows. By default, this option is not checked.

New check box to control automatic decimal adjustment behavior.

Adjusting decimal places by column width

When the number format for a cell is General and its displayed content is numeric, it is subject to automatic decimal place adjustment based on available column width. The adjustment is performed in the following fashion.

First, Calc tries to fit the displayed number within the cell width by reducing the number of decimal places. If the number doesn't fit even after all the decimal places have been exhausted, it then switches to scientific notation and continue adjusting decimal places in that notation. If the number still doesn't fit even with the scientific notation, it displays '###' in place of the original value.

(1) Optimal column width, with maximum number of significant digits shown, (2) adjusting by truncating decimals, (3) switching to scientific notation, (4) truncating decimals in the scientific notation, and (5) all adjustment options exhausted, displaying ### as a last resort.

Migration

N/A

Configuration

The configuration option for automatic adjustment of decimal places for General number format is stored in the existing node Calc/Calculate/Other/DecimalPlaces. When the Limit decimals for general number format option is not set, the value of -1 is stored in this node, whereas when this option is set, the specified decimal places is stored in this node.

File Format

N/A

Open Issues

Not yet determined.

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