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With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company.

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** Please Note:** This article is written for users of the following Microsoft Excel versions: 97, 2000, 2002, and 2003. If you are using a later version (Excel 2007 or later),

Reid notes that he can display numbers using scientific notation and they appear in Excel in the format 1.23E+03 or 1.23E-03. He would like the scientific notation to be shown differently, such as 1.23x10^3 or 1.23x10^-3.

There is no way in Excel to change the way in which scientific notation is displayed. The only workaround is to use a formula to put together a text representation of what you want. For instance, if a value that uses Excel's scientific notation is stored in cell C7, you could use the following formula:

=LEFT(TEXT(D7,"0.00E+0"),3) & "x10^" & RIGHT(TEXT(D7,"0.00E+0"),3)

This formula essentially pulls the left portion of the number (the part before the E) and combines it with the right part of the number (the part after the E) together with the "x10^" notation. The result is considered a text string by Excel; it cannot be used in subsequent calculations.

If you needed to do quite a bit of formatting in this manner, it would be a relatively trivial matter to create a macro that returned the formatted text string based on the number. Create it as a user-defined function and you could then use it in your formulas.

*ExcelTips* is your source for cost-effective Microsoft Excel training. This tip (9234) applies to Microsoft Excel 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Excel (Excel 2007 and later) here: Custom Formats for Scientific Notation.

*Related Tips:*

**Comprehensive VBA Guide** Visual Basic for Applications (VBA) is the language used for writing macros in all Office programs. This complete guide shows both professionals and novices how to master VBA in order to customize the entire Office suite for their needs. Check out *Mastering VBA for Office 2010* today!

Here it is!!!!

All you have to do is place a # at the beginning of the regular scientific notation to format in engineering notation!!!

format: 0.000E+00 #00.000 E+00

------------------------------------

number: 3.142E+14 314.159E+12

3.142E+12 03.142E+12

3.142E+11 314.159E+09

3.142E+10 31.416E+09

3.142E+09 03.142E+09

All you have to do is place a # at the beginning of the regular scientific notation to format in engineering notation!!!

format: 0.000E+00 #00.000 E+00

------------------------------------

number: 3.142E+14 314.159E+12

3.142E+12 03.142E+12

3.142E+11 314.159E+09

3.142E+10 31.416E+09

3.142E+09 03.142E+09

Finally: a function for proper scientific notation!

For a very long time I have been looking for a function that converts a number to text in the real scientific format, not the clumsy notation with E+23 or 10^-5.

Finally I think I found a solution.

Rather than formatting part of the string into superscript, the function uses Unicode characters for superscript "0" to "9" and superscript "-".

The basic VBA function for the exponent part is given below. This can easily be extended to a function doing the whole number with automatic mantissa and exponent calculation.

Function SciExp(Expon As Integer) As String

Dim sExpon As String

Dim i As Integer

Dim e As String

Dim Dig As String

Dim U As Long

sExpon = CStr(Expon)

e = ""

If Expon = 0 Then

SciExp = ""

Exit Function

End If

For i = 1 To Len(sExpon)

Dig = CStr(Mid(sExpon, i, 1))

Select Case Dig

Case "0"

U = 8304

Case "1"

U = 185

Case "2"

U = 178

Case "3"

U = 179

Case "4"

U = 8308

Case "5"

U = 8309

Case "6"

U = 8310

Case "7"

U = 8311

Case "8"

U = 8312

Case "9"

U = 8313

Case "-"

U = 8315

End Select

e = e & ChrW(U)

Next i

SciExp = ChrW(183) & "10" & e

End Function

Hope this will help a lot of scientists out there...

Pieter de la Court

For a very long time I have been looking for a function that converts a number to text in the real scientific format, not the clumsy notation with E+23 or 10^-5.

Finally I think I found a solution.

Rather than formatting part of the string into superscript, the function uses Unicode characters for superscript "0" to "9" and superscript "-".

The basic VBA function for the exponent part is given below. This can easily be extended to a function doing the whole number with automatic mantissa and exponent calculation.

Function SciExp(Expon As Integer) As String

Dim sExpon As String

Dim i As Integer

Dim e As String

Dim Dig As String

Dim U As Long

sExpon = CStr(Expon)

e = ""

If Expon = 0 Then

SciExp = ""

Exit Function

End If

For i = 1 To Len(sExpon)

Dig = CStr(Mid(sExpon, i, 1))

Select Case Dig

Case "0"

U = 8304

Case "1"

U = 185

Case "2"

U = 178

Case "3"

U = 179

Case "4"

U = 8308

Case "5"

U = 8309

Case "6"

U = 8310

Case "7"

U = 8311

Case "8"

U = 8312

Case "9"

U = 8313

Case "-"

U = 8315

End Select

e = e & ChrW(U)

Next i

SciExp = ChrW(183) & "10" & e

End Function

Hope this will help a lot of scientists out there...

Pieter de la Court