## Excel LN Function

The LN function returns the natural logarithm of a given number. It is the given number’s logarithm to the base of the mathematical constant e, where e equals 2.718281828459 approximately. =LN (number)

#### Arguments

• Number (required): The positive number that you want to calculate the natural logarithm of.

#### Return value

The LN function returns a positive numeric value.

#### Function notes

1. Number, the only argument in the LN function, should be supplied as a numeric value.
2. LN function will return the #VALUE! error if number is non-numeric.
3. LN function will return the #NUM! error if number ≤ 0.
4. Set the number to constant e (2.718281828), the value of 1 will be returned.
5. LN is the inverse of EXP. In other words, the input to the LN function is the output of the EXP function, vice versa. EXP returns e raised to the power of a number.

#### Examples

Supposing, you want to round the numbers to even integers in the table below. Please do as follows.

1. Copy the formula below into cell C4.

=LN (B4)

2. Then drag the fill handle down to the cells you want to apply this formula too. The results are as the following screenshot shows. Notes:

1. The given number in B6 is the constant e, and also the result returned from the EXP formula:

=EXP (1) 2. The LN formula in C6 can be seen as this:

=LN (EXP(1)) >>> returns 1, the natural logarithm of the constant e.

3. The given number in B7 is also the result returned from the EXP formula:

=EXP (4) 4. The LN formula in C7 can be seen as this:

=LN (EXP(4)) >>> returns 4, the natural logarithm of e raised to the power of 4.

5. We can directly input value in the number argument in the formula. For example, the formula in cell C4 can be changed to:

=LN (1) >>> returns 0

#### Relative Functions:

• Excel EVEN Function
The EVEN function rounds numbers away from zero to the nearest even integer.

• Excel EXP Function
The EXP function returns the result of the constant e raised to the nth power.

### The Best Office Productivity Tools

#### Kutools for Excel - Helps You To Stand Out From Crowd

 Popular Features: Find, Highlight or Identify Duplicates  |  Delete Blank Rows  |  Combine Columns or Cells without Losing Data  |  Round without Formula ... Super VLookup: Multiple Criteria  |  Multiple Value  |  Across Multi-Sheets  |  Fuzzy Lookup... Adv. Drop-down List: Easy Drop Down List  |  Dependent Drop Down List  |  Multi-select Drop Down List... Column Manager: Add a Specific Number of Columns  |  Move Columns  |  Toggle Visibility Status of Hidden Columns  |  Compare Columns to Select Same & Different Cells ... Featured Features: Grid Focus  |  Design View  |  Big Formula Bar  |  Workbook & Sheet Manager | Resource Library (Auto Text)  |  Date Picker  |  Combine Worksheets  |  Encrypt/Decrypt Cells  |  Send Emails by List  |  Super Filter  |  Special Filter (filter bold/italic/strikethrough...) ... Top 15 Toolsets:  12 Text Tools (Add Text, Remove Characters ...)  |  50+ Chart Types (Gantt Chart ...)  |  40+ Practical Formulas (Calculate age based on birthday ...)  |  19 Insertion Tools (Insert QR Code, Insert Picture from Path ...)  |  12 Conversion Tools (Numbers to Words, Currency Conversion ...)  |  7 Merge & Split Tools (Advanced Combine Rows, Split Excel Cells ...)  |  ... and more

Kutools for Excel Boasts Over 300 Features, Ensuring That What You Need is Just A Click Away... #### Office Tab - Enable Tabbed Reading and Editing in Microsoft Office (include Excel)

• One second to switch between dozens of open documents!
• Reduce hundreds of mouse clicks for you every day, say goodbye to mouse hand.
• Increases your productivity by 50% when viewing and editing multiple documents.
• Brings Efficient Tabs to Office (include Excel), Just Like Chrome, Edge and Firefox. No ratings yet. Be the first to rate!
This comment was minimized by the moderator on the site
Boa noite!

Gostaria de ter essa fórmula no excel:
equação ajustada fornecida pelo "inventário Florestal de Minas Gerais”
Ln(VTcc) = -9,821818496 + 2,155155721 x Ln(DAP) + 0,790768692 * Ln(HT)

Exemplo:
CAP ALTURA DAP
(cm) (m) (cm)
48,6 5,5 15,46986047