Square Root Function in Excel
The concept of Mathematical calculations includes a large number of numbers and calculations are based on the numbers present in the data. Likewise, Square Root is a function used to double the given value. The applications of square root function include finance, distance and lengths, probability density functions, science and technology, banking, standard deviation, circle radius, etc. It simply covers all the topics in mathematics.
Methods to Calculate Square Root
Microsoft Excel provides default formulas and functions to calculate the square root of the function. Apart from square root one can calculate cube roots, fourth roots and other roots using formulas. Manual calculation is possible only for small values, not for large numbers.
Let’s have a brief look about what are the functions used in Excel.
1. Finding the square of the given numbers
To find the square root of the given number,
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as A1^2.
2. Using SQRT Function
Using Sort Function, one can find the square root of a given number.
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as =SQRT (A1).
3. Alternative method for SQRT Function
Another alternative method to find the SQRT Function is using an exponent. Usually in while performing calculations manually and practically, the symbol to use is radical symbol called ((v).
In Excel the radical symbol cannot be used, hence caret character (^) is used which is present at the number 6 on keyboards. This symbol is also termed as power, exponent and operator.
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as =A1^ (1/2)
4. SQRT Function for a Negative Number
SQRT function won’t apply for negative values, because square root of a negative number does not exist among the set of real numbers. There is no way to square a number which gives a negative result.
In the above method, NUM error is occurred because of negative values.
To solve this error, ABS function is used to remove the negative sign from the value.
In the cell B1 enter the formula as =SQRT (ABS (A1))
In the above method, the SQRT of a negative value is founded using ABS function.
5. How to calculate the nth root of a number?
Excel doesn’t contain default functions to calculate the nth root of the number. To calculate this, increase the power of n as shown in the below steps.
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as =A1^ 3.
Here in the above method 10 is raised to third power.
6. How to find the cube root?
To find the cube root of the given number,
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as =A1^ (1/3).
7. How to find the sixth root of the number?
To find the root of the number,
STEP 1: Enter the value in cell A1.
STEP 2: Enter the formula in cell B1 as =A1^ (1/6).
8. Finding the Square Root of a number using IF condition?
For bigger formulas sometimes if condition is used to check the square root of the number. For example,
9. Finding the square root with POWER function
Here some of the various formulas to find the square root of the number.
From the above tabular column, it displays the identical result as 5. Hence it is user’s choice for formula preference.
Summary
From the above tutorial, the various methods to find the square and cube root is described. One can use the default function in Excel to perform the calculation in square root topics which is much faster and efficient!