GAMMA function

This article describes the formula syntax and usage of the GAMMA function (function: A prewritten formula that takes a value or values, performs an operation, and returns a value or values. Use functions to simplify and shorten formulas on a worksheet, especially those that perform lengthy or complex calculations.) in Microsoft Excel.

Description

Return the gamma function value.

Syntax

GAMMA(number)

The GAMMA function syntax has the following arguments.

  • Number    Required. Returns a number.

Remarks

  • GAMMA uses the following equation:
    GAMMA equation
  • Г(N+1) = N * Г(N)
  • If Number is a negative integer or 0, GAMMA returns the #NUM! error value.
  • If Number contains characters that are not valid, GAMMA returns the #VALUE! error value.

Example

The workbook below shows examples of this function. Inspect them, change existing formulas, or enter your own formulas to learn how the function works.

To work more in-depth with the example data in Excel, download the embedded workbook to your computer, and then open it in Excel.

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Applies to:
Excel 2013, Excel Online