09-04 Contents: EuroCACS, EuroAfriCa, Excel Plus oddities
ISSN 1649-2374 This issue online at http://www.sysmod.com/praxis/prax0904.htm [Previous] [Index] [Next]
Systems Modelling Ltd.: Managing reality in Information Systems - strategies for success | |
IN THIS ISSUE |
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1) IT
Risk EuroCACS 2009 Frankfurt |
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2) European research EuroAfriCa ICT Forum The Informatics Development and Social Research Institute |
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3) Spreadsheets Plus Prefix entry weirdness Plus wait, there's more... XLTest 1.06 beta version available |
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4) Off
Topic April Fool stories |
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9 Web links in this newsletter |
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About this newsletter and Archives Disclaimer Subscribe and Unsubscribe information |
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You learn something new at every event; I learned of two more Excel oddities this month!
A beta version 1.06 of my XLTest addin for
spreadsheet auditing is now available. It will go on sale at 199 euro
so now is your chance to try a time-limited version for free!
Patrick O'Beirne
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An attendee at our EuroCACS workshop told us of another oddity in Excel.
It fails in both Excel 2003 and 2007.
1) In a cell formatted General, enter +32768/6/3. The result, as
expected, is 1820.444
Note carefully: type a plus sign first, rather than your habitual
equals sign.
Excel changes the plus sign to an equals, that's the only change.
2) Now format a cell as Number, with the default 2 decimals . Make the
same entry. It shows the formula as
=32768/2 and the result is 16384.00
It only fails when there are two slashes, the first number after the
plus is 32768 or larger; and the cell is formatted as other than
General.
When the final number has a decimal place, it raises "The formula you
typed contains an error"
When the middle number has a decimal place, it leaves the formula
untouched.
Now you may ask "Who other than an unreformed Lotus 123 user starts a
formula with a plus sign?"
The reason is, the IT auditor who reported it is from Hungary. Their
keyboard does not have the equals sign in a convenient unshifted
position as the US & UK have. So their users are accustomed to
starting formulas with the plus sign. When they attempted to divide
100,000 over 31 periods over 31 products, the entry of +100000/31/31
gave the answer of 100,000
from a formula of =100000/1 rather than the expected 104.058. They were
concerned at this risk and said that MS acknowledged it as a bug.
http://www.sysmod.com/scanxls.htm
A beta version 1.06 is now available. It will go on sale at 199 euro so now is your chance to try a time-limited version for free!
Email me for an evaluation copy.
Toolbar buttons are:
Start new test session Open workbook for
testing, start new log, $APP sheet
Workbook Documentation Create $DOC sheet
for Workbook documentation
Reset Hidden structure Reset workbook
settings, hidden rows, columns, sheets
Detailed Inspection Create $INF sheets of
detailed cell inspections
Cell Formulas List / Colour List / Colour
cells by distinct formula (R1C1)
Conditional Format Formulas List / Colour
Conditional Format Formulas
Data Validation Formulas List / Colour
Data Validation Formulas
Colour Data Type and Usage Colours cells
by data type and input/output type
Colour Precedents Colour by
Precedents location
Colour Dependents Colour by Dependents
location or count
Remove colours Remove interior fill
colours of cells
Watch active cell Keeps an info window
open on current selection Shortcut:
Ctrl+Alt+w
Flag
active cell Places a flag on the cell for
a table of
contents Shortcut: Ctrl+Alt+f
Add supporting sheets Add $Readme,
Palette, Table of Contents sheets
Unprotect sheet Remove protection of
sheet contents
Compare worksheets Compare two worksheets
Compare workbooks Compare two workbooks
(same named sheets)
Options Options for what to search for
when documenting
Help Help on colours and keyboard
shortcuts Shortcut: Ctrl+Alt+h
About XLTest User and License
information
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Simply send your comments to FEEDBACK (at) SYSMOD (dot) COM
Thank you! Patrick O'Beirne, Editor
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http://mail.google.com/mail/help/autopilot/index.html Google's version of autocomplete for email.
http://tech.yahoo.com/news/pcworld/20090401/tc_pcworld/top10aprilfoolsdayfakenewsitems_1
I particularly enjoyed the Wolfpigeon skit on ubiquitous wireless networking
http://www.qualcomm.com/innovation/convergence.html
MS had a techy "Negative Sleeps in VB":
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