Türk İngilizce
KAREKÖK SQRT

Calculating and Using Square Roots

Microsoft Excel and Google Sheets are spreadsheet programs that include an extensive set of mathematical functions. One such function, SQRT, calculates the square root of a number. A square root is a number which, when multiplied by itself, yields the original number. The SQRT function returns only positive results and will produce an error if a negative number is input.

Function Syntax

The basic syntax of the SQRT function is as follows:

SQRT(number)

Here, number is the number for which you want to find the square root. If the number is negative, Excel returns a #NUM! error.

Examples of Using SQRT

  • =SQRT(9) yields a result of 3.

  • =SQRT(16) yields a result of 4.

  • =SQRT(-4) results in a #NUM! error because the square root of a negative number is not defined as a real number in mathematics.

Practical Applications

The SQRT function can be used in various fields, from engineering to finance. Here are two practical applications:

Application 1: Geometric Problems

Suppose you know the area of a square and need to determine the length of its sides. If the area is 25 cm², you can calculate the side length using the square root function:

=SQRT(25)

This formula computes the length of one side of the square as 5 cm.

Application 2: Financial Modeling

The SQRT function can be utilized to calculate the standard deviation of investment returns. For example, if the variance of annual return rates is 16%, to compute the standard deviation, you would use:

=SQRT(0.16)

This calculation indicates that the standard deviation is approximately 0.4%, which is critical for assessing risk.

Summary

The SQRT function is easily accessible in Excel and Google Sheets and serves as a fundamental tool for mathematical calculations. It offers a wide range of applications, from geometric computations to financial analysis.

Daha fazla bilgi: https://support.microsoft.com/tr-tr/office/karekök-işlevi-654975c2-05c4-4831-9a24-2c65e4040fdf

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