// Home / Documentation / Function Reference / NTLOGNORMINV

# NTLOGNORMINV

Returns the inverse of the cumulative distribution function for a specified log normal distribution.

## Syntax

NTLOGNORMINV(

• prob,
• M,
• S

)

#### Parameters

• prob is a probability corresponding to the normal distribution (0 < prob < 1).
• M is a parameter of the distribution $M$.
• S is a parameter of the distribution $S\;(>0)$.

## Example

• The example may be easier to understand if you copy it to a blank worksheet
How to copy an example
1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

Note  Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

1
2
3
4
5
6

A B
Data Description
0.5 Probability associated with the beta distribution
13.5 Value of parameter M
31 Value of parameter B
Formula Description (Result)
=NTLOGNORMINV(A2,A3,A4) Inverse of the cumulative distribution function for the terms above