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About Tom Ogilvy
Expertise
Worked with the program for many years - provided assistance on MS Excel Newsgroups since 1997. Have received the Microsoft MVP award annually since 1999. I don't answer questions on using Excel in a browser Since I have no way to test this. Prefer not to answer charting questions. I consider myself to be particularly knowledgeable about using VBA internal to Excel but have no problems with formulas and pivot tables either.

Experience
Have Used Excel for 15 - 20 years. Answered in excess of 70,000 Excel related questions in MS Excel newsgroups. Unless obvious, please specify whether you want a worksheet function or macro/VBA solution.

Education/Credentials
BS General Engineering (concentration in Industrial Engineering) MS Operations Research Systems Analysis

You are here: Experts > Computing/Technology > Microsoft Software > Excel > Unknown Macro statement

Excel - Unknown Macro statement

Expert: Tom Ogilvy - 5/21/2008

Question
I have a macro that has the statement:
If X <> 0# Then
If I output the value of 0# it comes up as zero.
Any idea why this is there like that?

Answer
Ian,

It is zero.

You can check out the purpose in the immediate window in the Visual Basic Editor:

? typename(0)
Integer
? typename(0#)
Double

so you can see that the # casts the zero constant as a double.

This might be appropriate if X is typed as double as well. You can think of it as explicit casting - since if you don't, excel/vba will have to do an internal conversion to do the comparison if the types are not of equal type. In actual practice, it might not make any difference in how the code executes.

--
Regards,
Tom Ogilvy

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This topic answers questions related to Microsoft Excel spreadsheet (or workbook) stand-alone or Mircrosoft Office Excel including Excel 2003, Excel 2007, Office 2000, and Office XP. You can get Excel help on Excel formulas(or functions), Excell macros, charting in Excel, advanced features, and the general use of Excel. This does not provide a general Excel tutorial nor the basics of using a spreadsheet. It provides specific answers to using Microsoft Excel only. If you do not see your Excel question answered in this area then please ask an Excel question here