The GAMMA function in Google Sheets is a mathematical tool used to return the Gamma function, a key concept in various fields, particularly in statistics and calculus. This function is essential for dealing with problems in probabilities and distributions, making it beneficial for researchers, statisticians, and data analysts.

Syntax

GAMMA(x)

• x: A real number for which the Gamma function is computed. It must be a positive number or zero.

Example #1

GAMMA(5)

This computes the Gamma function for the value 5, resulting in 24. The calculation here is based on the property that GAMMA(n) = (n-1)!.

Example #2

GAMMA(0.5)

When invoked with 0.5, the function returns approximately 1.772, which corresponds to the Gamma function evaluated at the half-integer argument, essential for certain probability distributions.

Example #3

GAMMA(10)

This call evaluates the Gamma function for the input 10, yielding a result of 362880, reflecting the factorial relationship in its computation.

Error handling

• NUM! This error occurs if the input number is less than zero. The Gamma function is not defined for negative integers.
• VALUE! This error indicates an invalid input type, such as a text string or a non-numeric value.

Conclusion

The GAMMA function is a powerful resource within Google Sheets for anyone needing to implement statistical calculations involving the Gamma function. Understanding its syntax and usage can significantly enhance data analysis tasks and streamline mathematical assessments in spreadsheets.